Good luck to all of them. Heskey's a nice guy and a trier, it was always pleasing on the very (very) rare games he played well and it always seems to surprise him as much as anyone else, if he scores a goal.
Cueller will be missed. Top bloke and good pro. However, he's 30 now and replacing him with someone younger on lower wages, would make sense.
Guzan is just teetering between being an excellent number 2, or a good number 1. He has potential to be great as a number 1, but perhaps it just won't happen for him here. I doubt he wanted to stay again. Personally, Given is my number 1, regardless of Guzan playing well when called upon. There were still a few too many question marks. I think he'll do a top job for a low end Prem or decent championship side.