I saw the Clemente statue on the outside. Who was the other statue - Willie Stargell?
Honus Wagner.
There is indeed a great statue of Wagner, and in addition to Clemente and Stargell, perhaps the best statue is Bill Mazeroski, running wildly, arms spread and holding his cap after hitting the walk-off homer to win the '60 series. There are also statues of Josh Gibson and Satchel Paige, and of course, Pittsburgh icon and devoted fan, Mister Rogers.