Pirates need more pitching

[Cardinals]

Good news on Motte lately so I don't feel as much pressure to add a huge pen arm, but I'd still like to add a couple pieces. I could use a RH reliever and another SP.

I have three pretty good lefties in my bullpen. Scrabble, Sean Burnett and Tony Watson. I'd be willing to move one of them for a RH reliever.

Additionally, I have the following SP available:

Ervin Santana (2.00 ERA, 1.03 WHIP, 31 SO/ 5 BB, 36 IP)
Nick Tepesch (2.53 ERA, 1.08 WHIP, 14 SO / 3 BB, 21.1 IP)
John Gast (AAA: 0.00 ERA, .97 WHIP, 22 SO/ 6 BB, 24.2 IP)
Vidal Nuno (AAA: 1.54 ERA, .64 WHIP, 26 SO/2 BB, 23.1 IP)

I'd still like a lefty bat, too, and would be willing to move Holliday, Craig or *maybe* Kemp in the right deal. Unlikely Kemp.