I'm going to be honest and say that I think your expectations out of a high draft pick are a little inflated.
MLB Career:
Mayer 20 PA, 5 H, 2 2B, 1 BB, 4 K
Lawlar: 56 PA, 4 H, 3 BB, 9 K
It'll be interesting to compare these two over the next few years as Lawlar was targeted by the Sox prior Mayer falling in the draft. Mayer missed portions of the previous few years to injury and Lawlar missed almost all of last season. Developmentally, they are about on the same track at the moment.