I agree in principle, but if Girard gets good shots in the flow of the offense, his results could be more like 20ppg on 6 of 16 shooting, 5 of 13 from 3, 1 of 3 on twos and a handful of free throws every game. He'll have his 8 for 14 three point shooting nights and he'll have his 1 for 14, but they'll average out to a decent high volume percentage that actually helps the team win.
Playing on a team with a good post presence and decent passing guards, Girard might not need to play hero ball to get his points.
If he does shoot 23 shots every night, especially if a lot of them are ill advised, the team could be unwatchable and disintegrating by Christmas.
I don't think JB will let that happen, but a lot depends on the other guys being effective.