Actually, he is for real, and not much of a flash-in-the-pan, at that. Was an All-Star for the White Sox in 94, got a big-bucks free agent deal with Tampa
in '96, then threw out his shoulder and had major surgery. Missed two years. Came back with rough season at Tampa, then signed with LA. Lost some velocity but gained movement on all his pitches. Has gone 6-1 with 1.65 ERA over last 10 starts dating to last season.
What we seem to have is a once highly regarded hard-thrower who has refined his style and matured since a nasty injury. Enjoy the ride if you can climb aboard.