This is not an article meant to knock the baseball geekery that has come into vogue since the writing of Moneyball; if it comes down to a trove of neglected statistics to determine a player's worth or a scout admiring his form (or even his looks), I'll go with the former.
This is about confusing numbers as the source of greatness as opposed to greatness as the source of numbers. A number of writers have opined how fortunate it was that Roberto Clemente managed to stroke career hit No. 3,000 in his last-ever at-bat, before his untimely death in 1972 in a plane ferrying supplies to earthquake victims. The nice, round number and sense of achievement sit well with those concerned with posterity -- though we're reasonably certain it was little comfort to Clemente when that plane went down. The point is, though, whether Clemente notched 2,999 hits or 3,000 he was a great player -- and, to listen to those who saw him play, great in a way that transcended the box score.
So, congratulations to Johnson on reaching the top of the mountain -- and, let us hope, this doesn't turn out to be the highlight of the Giants' season. But make no mistake. Randy Johnson isn't great because he'll have won 300 games. He'll have won 300 games because he was great.