IT does look better this year than last, but also Vasquez is worse than any guard we've had start for us in years. But not only is the point that starting IT and weakening our bench substantially a concern, as well as having an offensive threat on the floor for less than 48 mins a concern, but what about the issue that IT is best when he's the focus and Cuz is the best when he's the focus? If IT is constantly looking to set up Cuz, it negates what he does best, and if Cuz is splitting touches with IT and getting fewer shots, it also negates what he can do to an extent.
What do you expect a 2nd option to do? The whole point of having a #2 guy is having him on the floor with the #1 guy to take pressure off him. You don't think Cousins would see more 1on1 match-ups if he got more minutes with IT?
As far as weakening the bench this year... so? We're not trying to win games anyway.
The concern would be is if IT went hero mode and completely ignored Cousins. But every indication, in the small sample we've seen them play together, says IT is more than willing to get Cousins the ball.