http://espn.go.com/nba/story/_/id/71478 ... candidates
The only apparent disclaimer is the possibility that the Lakers could double dip in terms of savings in the form of injury relief should Walton elect to retire, which would then make a subsequent amnesty divorce from the mercurial Metta hard to resist financially. One team insider said that Walton, though just 31, has indeed begun to contemplate retirement because of a debilitating back condition, with Walton himself telling ESPN.com's Andy Katz earlier this summer that he's seen multiple doctors who have advised him to stop playing. So stay tuned.
If Luke were to retire that could possibly open up a spot for someone like Battier. It would leave the Lakers with amnesty which probably would come down to Blake and Artest. There are also rumors that J.R Smith would be released from his Chinese team once the lockout ends. Even though I don't think J.R. Smith would be thrilled to play on the Lakers behind Kobe, he would still be my first choice to go after.