I think we all have talked about a 7v7 mode sometime back and I even had some doubts due to McCree only having 6 shots but then it turns out he can aim at infinite targets during his ult. So I think with you suggesting this in the light of wait times, I could see a 3-2-2 working tbh.
This would actually give Sombra and Symetra (Off-DPS-HybridSupportPicks) a place in the team even with 2 traditional dps players. Good idea tbh.
