i think the biggest problem with Lester starting instead of Pauley, is because its in Yankee stadium, more than he isnt ready yet. If Lester pitches well against Texas he might take over that 5th spot from Pauley untill Wells is back.
haha heres some video some guy took of Lester warming up in the bullpen before a PawSox game this year
http://video.google.com/videoplay?docid=7722997256705769250
Choi will be up once Snow is gone.
Lester will be soon. In the next month or two.
I think Hansen stays in AAA for the year to work on control problems.
Pedroia would only come up if a middle infielder had to go on the DL.