Coleman just is who he is. When you have somebody exhibit the same behavior for three years without showing much of any signs of growth on that front, it's just hard to expect them to do so in that 4th year. Fans like to say he has all the tools, and physically he does have many or at least parts of many, but the mental side is just as important and he's missing that part. And it's not even that uncommon for this to happen- Matt Mayer falls in the same camp. Or if you want to go extreme, someone like Jereme Richmond. It's just how a person is wired. Coleman's Coleman. So like him, hate him, there's just not much one can change about him at this point.
What’s Coleman’s role on the team? I think one of BUs problems is his ”system” requires players to excel simultaneously at too many roles. What would make everyone happy with Coleman? He’s already a great defender, and rebounder. He was top 10 in the B1G last year in 2pt FG%, and assist %.
He’s frustrating because he’s been put in a role that requires him to have PG skills while also shooting 35% from 3. It’s an unrealistic expectation.
These are his ranks in BIG10 last year:
13th - rebounds
12th - offensive rebounds
17th - defensive rebounds
15th - assists
19th - steals
9th - blocks
8th - 2pt FG%
7th - Defensive win shares
14th - defensive rating
That is a great player right there he’s just being expected to excel beyond his strengths. Its on the coaches, imo.