Sure, he'd be an upgrade over guys like Luis Cruz and Elian Herrera, but Rollins isn't exactly a great player anymore and will likely regress in after this season.
Rollins signed a 3-year, $33 million contract this offseason and is owed roughly $5 to 6 million for the rest of this season. He also has a vesting option for 2015. From Cots:
"2015 option guaranteed at $11M with 1) 600 plate appearances in 2014 or 2) 1,100 PAs in 2013-14 and Rollins is not on disabled list at end of 2014 season (or if he is on the DL, a mutually agreed upon doctor deems him available for 2015 Opening Day roster)
If option does not vest, Phillies hold $8M club option for 2015 and Rollins holds $5M player option"
Not exactly attractive. While the price to acquire him would be minimal (especially if the Dodgers pay all his salary), it also means there'd be the question of what to do when Dee Gordon returns from injury.
The Dodgers need help at almost every position -- shortstop included. However, acquiring a high-priced veteran and stunt the development of a young shortstop isn't the way to go.
Rollins is on the wrong side of 30, has declining defensive skills and a poor on-base percentage (.317 this season, .329 for his career). The investment is not a smart one. The Dodgers need to allocate their resources elsewhere in hopes of an upgrade.
Every day Chase Headley is not a Dodger is a day his price goes up. Of course, the Padres need to be willing to trade him (no reason they shouldn't be), but they're waiting for as long as they can to get the best deal.
Photo credit: SD Dirk, Flickr