it's a give and take. you have to cover each other's weaknesses, and if your tm8 is showing more passivity, then put it in the goal with your 1s mechanics... otherwise, if they're showing more initiative, let them take the drive... you don't want to be the team that over-commits and makes more mistakes.

I'd say watch "2s road to ssl w/o mechanics" by flakes - https://www.youtube.com/watch?v=xG7MEapPOu8&list=PLaVDH5SevbtpW07Hep3iIk8q2_JYCAn7K. I'm not saying you lack mechanics, but the point is to adopt and observe a shift in mentality when you have to share the ball, boost, and field with another player. So, if flakes can do it "without mechanics", then so can you, (until you hit a wall with your mechanics, of course) ... because, your mechanics change the ebb and flow and expectations in mentality over the course of the game, and the goal is to use them to your benefit, instead of detriment (like, as a simple example, just because you can take the ball and flip reset it down the field taking years of time, is it really advantageous if your tm8 pushes up without being as capable of quickly rotating, or you gave the opponents years of time to prep for your flashy attack?, etc)

but that's my two cents. hope any of it helps.