If Jimmy Rollins keeps hitting like this, will he be the Phillies SS through the end of the season?

At some point during the season, if a hitter isn't getting it together, you realize it's no longer a ''slump'', but rather a decline. He took a sharp decline from greatness in '07 to mediocrity in '08 and appears to have taken it to the ''sucking'' notch now. What he has going for him is that he's still great defensively, and that's important, being that the Phillies are the best team defensively in baseball right now. What will Charlie Manuel do though? Should be move Victorino to lead-off? He gets on base and has speed. By that that, he'd probably move Rollins to the 7 hole, Feliz up to the 6 and either Ibanez or Werth, or maybe even Utley, or a variation, to the 2 hole. A lack of consistent line-up could effect the team's chemistry though. Plus, is Feliz good enough the duration of a season to bat sixth? Could they trade Rollins? If so, what could they get back for him and who would play SS? Do you think Jason Donald is ready? Or could they trade for a 3B or RF that could lead-off?