Johan will fall back to Earth this year

If you go back to his days in the Venezuelan league, you'll see that
Santana has only gotten better. Unlike many young pitchers, his
command, velocity and movement have improved while in the biggies.
He's shown the beginning of an agressive attitude and if he adopts the
"I own home plate - not you" attitude of a Clemens/Pedro, then the
sky's the limit for this guy. If he stays healthy and agressive,
Santana could easily become one of the 10 most dominant starters in
baseball.