Can anyone explain baseball pitching strategies?

I can explain the Nats strategy pretty easily. Keep your starter in for as long as you can, 7-8 innings ideally and then turn to Doolittle and Hudson to get you 4 or 5 outs at the end. And if you need to take one of your starters out after 6, bring in another starter to pitch the 7th. Doesn't get much more simple than that.

The Yankees strategy? NFI.