What's Going On Here?

Was anyone at Saturday's game who could tell me what, exactly the fans were booing about? The Post-Gazette's article on the game describes the booing extensively, but does not suggest that rookies were being blamed for the Pirates' problems. A close look at the game log gives me few reasons to believe they should have been, either. Ryan Doumit and Brad Eldred both put up 0-fers, but Nate McLouth hit very well. Meanwhile, Rob Mackowiak went 0 for 3 with a walk and an error; none of the (veteran) pinch-hitters got on base; and the pitchers, who were neither young nor old, allowed nine runs.

Then, in defense of his players, Lloyd McClendon says this:

Got that? It's the young players' fault. Granted, if you squint just the right way and think of Dave Williams, Ryan Vogelsong, and Mike Gonzalez as young players, and you ignore the failures of Mackowiak, Brian Meadows, Tike Redman, Daryle Ward et. al., you might be able to blame that loss on youth. But it's a huge stretch.

So, naturally, today's lineup is:

Sanchez 2B
Mackowiak CF
Bay LF
Wilson RF
Ward 1B
Wigginton 3B
Cota C
Wilson SS
Wells P

... Not a rookie to be found. And Tike Redman was the first pinch-hitter used.