I do.
He can rebound at a high level still.
He has an efficient lang range jumpshot.
He can finish at the basket.
He has great weak side defense.
He has good on ball defense.
He can run the break (Mobile)
Lets see, did i leave anything out?
An alternative could be to try to acquire and get something out of a player like Ryan Hollins. Although young, he is showing signs of life in his minutes given this season (albeit few minutes). Plus, with the addition of Diaw his time is likely to shrink again.
It's worth a shot, we need something. He's cheap, he can block shots, finish, run the break etc. Plus, his contract is up this year so there isn't a substantial commitment there. Maybe something like Udoka straight up. Or maybe something like a second round pick with Udoka.
I still like Ian, but there is nothing wrong with getting him with a reasonable trade. Who knows, he and Ian could be the compliment to our veteran bigs which would give us much needed versatility in the frontcourt.