Lacy is a great pass blocker and hes also a good pass catcher. Im a huge Alabama fan and ive watched him his whole career at Bama. He'll fit in fine here. Also, for anyone worried about his injury history, dont forget, its RB by committee. Lacy likely will only run the ball 15 or so times max per game while Franklin or someone else gets several more carries. So yes, while Lacy is a heavy workload power back, he wont see a heavy load with us unless we get big leads early on in games and decide to pound the rock for two straight quarters. Thing is, I wouldnt worry much about his injury riddled past or him wearing down. RB by committee tends to remedy that type of stuff.
Lacy will also surprise you with his speed. He can actually break away for 50+ yard TD runs.
Also, dont be surprised if Lacy catches 50-60 balls this coming year. Hes a great pass catcher.