Shelden is the same height as baby
Shelden is NOT the same height as Baby. That's painfully clear just by looking at them out on the court. Baby might be listed at 6'9'', but at best he's 6'7''. Shelden looks like he might be just a bit shorter than Perk, but not by a whole lot. His main weakness is that he can't really hold onto the ball that well, but he still rebounds better than anybody else on the team, and can finish it (or get fouled) alright down there.
Anyway, I'm not actually arguing that Shelden is better than Perk, but I wouldn't mind seeing some radical change in the starting lineup simply because this team needs to get the message: things just aren't working right now.