<p>The Tampa Bay Bucs' grounding of Keyshawn Johnson is yet another reason to love the NFL. The league has its imperfections, sure, but it's the only one of the Big Three — football, baseball, basketball — in which the inmates don't run the asylum, in which the players don't have the owners by the nape of the neck. It's one of the keys to pro football's susccess, and it's why Mr. Johnson is on the Bucs' inactive list this morning, looking like the self-absorbed jerk he is.</p>