I’d say you have to liken Overwatch to, say, a Volleyball game (I picked Volleyball because that’s the only team sport I played for years and feel familiar enough with for comparisons).
In Volleyball, there are four core “positions,” so to speak, and six players in the game. The front line constitutes the first defense and the offensive line, while the back line constitutes hard defense and stabilization. In both lines, there are 3 players. The players rotate after a score and before they serve.
The backline is typically compromised of a defensive specialist and two other players with frontline capabilities, to rotate in when needed, who can also play supportive defense. The frontline is compromised players with quick-defense capabilities and pure offensive abilities. The core “positions” are as follows:
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The Setter (front line)
The setter “sets” the ball up for the ideal play. They must be aware of the entire team’s current state, position, plays the team has practiced or is fit to pull off, and the likely response of the enemy.
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The Outside-Hitter (front line)
The outside-hitter is the team’s primary attacker. They must have strong control over the ball, good precision and agility, and be skilled at jumping. These are the players you will most often see dealing out swift and powerful spikes into the opponent’s court and scoring points.
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The Middle-Blocker (front line)
The middle-blockers moves around the front line, defensively blocking every hit they can. They sometimes join up with the outside-hitter to perform a double block, if necessary. They require the ability to quickly go back and forth in order to block opponents.
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The Libero (back line)
The Libero is a defensive specialist who plays only in the back row positions. Through digs and passes, they are able to defend the team’s court and regain control over the ball for their team to make a play.
I liken the Setter to Support, the Outside-Hitter to DPS, the Middle-Blocker to Off-Tank/Secondary Tank, and the Libero to Main Tank. There is typically another Setter and Off-Hitter waiting in the backlines to rotate in and helping out defensively (much like there are main and off healers, pure damage and utility DPS).
Obviously, it’s not a perfect metaphor. For example, the positions you are eligible or suited to play is often based off your body’s build and your height. But let’s pretend that isn’t the case, that the only distinction in who can play what is purely skill on said role, not anything you fundamentally can’t change.
If that were true, most Volleyball players would be vying for the outside-hitter position— typically the most recognized and flashy of all the positions— because scoring points for your team and flexing on the opponent is extremely gratifying. It’s the same reason people in Overwatch want those POTG’s and to play high damage dealing heroes.
There would be less, but still some players who were interested in being setter or middle-blocker, simply enjoying that way of playing in and of itself. Still being an active part of the plays themselves in the frontline, some people prefer those more cooperative, enabling positions.
If height wasn’t a factor in position like it is, without a doubt, the fewest people would want to actually play libero. Digging is incredibly physical, usually kind of hurts, and at the moment when a pivotal dig is really needed, it’s not always possible to make happen. But, if you miss something or fail to defend the backline from powerful spikes, it’s entirely on you. Moreover, the libero doesn’t get to rotate around in the team getting to play their roles more defensively or offensively. They only are permitted to play the backline, take the hardest hits, and hopefully salvage them for the team.
I know because I played libero for years. And, it kind of sucked a lot of the time. People didn’t really notice your contribution to the team until you failed to contribute it. You’re expected to do the hardest job, without much recognition, and take a beating.
But obviously the libero is important. Without them, the enemy would be constantly scoring on parts of your court that you couldn’t even reach to stop. Not a lot of people want to play it, necessarily, but nobody wants to play without it, either.
But what if we took away the mid-blocker position and replaced it with another off-hitter instead? Now there’s three off-hitters on the field (2 in front, 1 to rotate in back), two setters (1 in front, 1 to rotate in back) and one libero. Well, although the outside-hitters can sometimes help out the middle-blockers to preform an even stronger block, they aren’t equipped or trained in blocking, for the most part. So, that would mean that a lot of things which could be quick-blocks on the front line are now becoming REAL blocks on the backline for the libero to handle, even though they aren’t necessary attacks so significant that only the libero is equipped to handle them.
The libero is now having to focus so much on these little but constant attacks, they can’t focus, prepare, or be in position for the big attacks they’re meant for, meaning, they’re more likely to not be able to do their job effectively.
Meanwhile, with two outside-hitters in front with the setter, the setter will be unsure of what plays they should be setting up and for whom. Which outside-hitter should make the play? The setter might begin to think which one is less likely to miss or more likely to succeed and start ignoring the other, leaving this outside-hitter to be frustrated and also not making any useful impact on the court.
It’s basically a mess. The game isn’t designed in such a way that necessitates this many outside-hitters and no middle-blocker. Sure, a bunch of strangers might try to play it this way in a pick up game, but it’s something that would hold any team back, overall. Suddenly, the entire team is more frustrated, less able to do their job, and performing worse.
If they wanted this team composition to work optimally, they’d need to drastically change the game of Volleyball— altering the size of the courts, or the moves players are allowed to make, or the objective of the game. But there’s no reason for a team to run this disadvantageous composition into the current game of Volleyball, because the other team set-up fits better with the game at the moment overall and yields better results.
Just think about the volleyball positions as roles in Overwatch, and it makes sense why 1-3-2 doesn’t work. You can’t give the libero extra kneepads, a helmet, and a pair of Heely’s and then expect them to cover the duties of libero and middle-blocker suddenly. The game would literally have to change in a fundamental way for this to be possible, and it hasn’t thus far.
All we have on the Experimental is shoving outside-hitters into the responsibilities and position of middle-blocker, which they aren’t best equipped or trained to even do, so then why even put them in that spot in the first place?