Justin Morneau was able to put his concussion issues behind him in 2012, but his numbers were well off his best years, a four-year span from 2006 through 2009:

2006-09 average: .292 average, 30 home runs,118 RBI,.364 on-base percentage,.516 slugging
2012: .269 average,19 home runs, 77 RBI,.336 on-base percentage,.443 slugging