Last week's GTE Classic convinced me of a few things about the Senior tour. First, Bruce Fleisher isn't going to go away anytime soon. For that matter, neither are a lot of his low-profile but highly skilled brethren, guys like Allen Doyle and Dana Quigley who still feel they have something to prove. Second, never before has the 50-and-over circuit had this kind of depth and as many players capable of winning. Finally, this year's rookie class won't automatically take over, as has happened so often in the past. Here are two words of advice for Messrs. Kite, Wadkins and Watson: Play hard.