He was never THAT good of a striker in the first place!
Keeping him on would just be a waste of everyone's time. It's sad and all, he's ben a good player for us, but not EVERYONE has to stay here FOREVER.
He is not as old as some people are making out (only 31) and we are talking about a possible one year contract, which is not 'forever'.
He has something to offer at right midfield and right back as well as up front. I suspect that Adam Virgo is more likely to be used as a back up striker to be honest.