I personally don't think Njer Morgan will make it, and I am one of the rare people who doubts that McCutchen, A, will be the sensation he is touted to be. When the smokes clears I see Alvarez and Tabata as being the impact players the Pirates desperately need, along with McLouth, and Doumit.
If ptiching properly can be taught, I think Snell and Tom Gorzelanny have as good of stuff as the top team aces. They just don't have the control to place their pitches where they want to, and, they don't have a clue about pitch selection. This sad combination made it so that they rarely got out of the first inning without being bombed last season, even though they throw in the low to mid 90s.