WOW! Who would pick him up? Redskins? Lions? Vikings?
The Redskins seem enamored with Jason Campbell and have Brunell as a backup so I don't see that happening and as Rhodes1991 said, the Vikings have only just traded for Holcomb. With the Lions I don't see Leftwich as being too much of an upgrade over Kitna so it's hard to call where he'll go.
I don't see him being a starter this year but teams like Baltimore and Green Bay will need a QB of the future soon (I haven't heard anything saying the Packers are starting to warm to Aaron Rodgers. Atlanta could bring him in to give Harrington some competition or KC if they feel he is an upgrade over Huard but Leftwich has a disadvantage over those guys as he doesn't know their systems whereas Harrington and Huard both have had time to learn their teams' respective offences.