My thoughts are, we will see. Blocking college player's shots doesn't always translate to the NBA where players are bigger and more crafty. NBA defense is more about team defense than coming off the weak side to get blocks. In the NBA, when you leave your man to go block a shot, your man usually gets a dunk. He wouldn't be the first person to not succeed if he couldn't get the hang of help defense NBA style.
Secondly, I think it is going to depend on what he can do on the boards. If he is an energy guy that is constantly working on the offensive boards, tipping balls back and getting put backs, then he can certainly get minutes.
Fifty percent might be the minimum on wide open 15ft shots in today's NBA. Contested that is good but it needs to be higher uncontested because you might as well go 1 for 3 from 3pt range if you can't hit 50% on mid range jumpers. You'd score the same and stretch the defense further for players who can drive.
I'm rooting for the guy but Bass was really good at that mid range shot, he could swap out on some of the best guys defensively, was really good at going up strong with the ball but his weaknesses hurt. He had terrible hands, couldn't dribble (the scariest thing for me as a Celtic fan was watching Bass dribble on the break, it worked out maybe 20% of the time) and was never a great offensive or defensive rebounder.
If the swap worked out anywhere near even his first year, I would be thrilled.