Pitching is much more important than hitting down the stretch and in the playoffs. Ortiz would be a valuable addition, and Jones bolsers the defense up the middle.
Take a look at the teams that win championships, and they are all strong in CF. Erstad, Pierre, Williams...all good defensive CFers.
Jones is probably better than all three both offensively and defensivley. ...Maybe not Williams, but close.
The Sox offense hasn't skipped a beat with Maggs out of the line-up, so it doesn't hurt a hell of a lot to trade him. I love him to death, but Jones and Ortiz puts the Sox in the elite. That's four above average starters in Garcia, Ortiz, Buehrle and Loaiza. That is one hell of a playoff staff.
IMO, with four starters that good, the bullpen isn't as big of an issue. Instead of the need for 2 maybe even 3 arms, KW can limit the need to 1.
If the deal is on the table, I'd pull the trigger. But does Maggs need to come of the DL for him to be traded?