I think we do need to draft a sf to backup Pierce
Just because we need a certain position, does not mean we should draft at that position. Looking at this draft without considering what type of team we have, it is clear that the strength of the draft is in the bigs. A good gm never drafts for need when other players could better help the team (see JR Giddens.
If the clear cut best player available this year is a big, great choose him But if it's real close, I think you have to go wing player. If it's a PG, then I think you have to go with second best player available.
Normally I'm a big best player available type draft person but being so very close to the end of Ray and Paul's careers here in Boston, special consideration needs to go towards addressing that area, if the BPA isn't clearly by a good margin a wing player.