Every Thursday morning at 7:25 we talk Boston sports with Legendary Boston Sports writer and ESPN host, Bob Ryan. Spring training is kicking off down in Florida.  Will we see the return of Dustin Pedroia?  What problems need to be answered before the season starts?  What’s going on with Kimbrel?   Is Matt Barnes the future?  Why are there so many unsigned free agents?  The Celtics are playing so well when they are missing important pieces.  What’s the trick for Brad Stevens?  What does Bob think about the losses to the Lakers and Clippers?  Can we get inside the head of Kyrie Irving?