I mean in that case I can make some picks that will allow him to have a more defined role. My team isn't even remotely complete.
This is true, however having both DeRozan and Beasley on a team. With your starting PG a journeyman without a track record of controlling an offense with talent on it scares me.
Plus Lin has succeeded so far almost entirely within the pick and roll. And I don't think any of your 3 "bigs" Bargs/Bogut/Beasley are good pick and roll players. The closest you have is Bargs in pick and pop situations.
I'm not that concerned with Lin. I don't think he can keep up at this level, but he's a great passer and moves very well without the ball. I think he's a good point guard and he's here to stay.
That being said, good points re: Beasley and Derozan. Lin controls the ball, I think ideally you're looking for slashers or 3 point shooting out of the wing position. I'd look to move Beasely later (he was a good pick, lot of value), and consider trading Derozan or move him to the bench where he can shoot away.