Call me crazy, but there are a list of factors at play here.
#1, we don't know for sure if there will be a baseball playoffs this year.
#2, we have no idea if baseball next year will even happen, or if it does, what it will look like.
#3, Lynn is a free agent in a season and a month.
#4, We are not in the part of the window where we should be mortgaging short term gain for long term losses. I would rather not have Lynn, than give up a lot of significant future pieces for him.
#5, even if we come up short this year, I am willing to do that in order to hold the future together. If I am giving up real pieces for a pitcher, I want at least 3 years of control in exchange.