I don't always agree with Keith Cowing, but he's right on the money here:
Reversing the decision could become a problem for Griffin and his successors, and "it opens up their decisions for further second-guessing," said Keith Cowing, who runs NASAWatch.com.
"It makes a joke of any leadership on Mike Griffin's part if he makes a decision and then he reverses it because Senator Shelby or (Rep. Bud) Cramer tell him to back off," Cowing said. "How can NASA administrators actually manage if they constantly have Congress reversing decisions they don't like?"
It's hard to blame Mr. Griffin though, it's not like he had a lot of options here, when Congress tells you to do something, you can't just say no. And it wasn't just one congressman, Senator Shelby convinced Senator Mikulski and Representative Mollohan, the chairs of the respective appropriations committees which oversee NASA's budget (i.e. people you don't want to piss off). I don't think Mr. Griffin had any choice here, I think the blame lies with Congress who shouldn't have made the request in the first place. Congress' job is not to micromanage. Does Sen. Shelby really think that he knows better how to get us back to the Moon than NASA does?