Bonds vs Clemens in court: Which case will have more govt idiocy?

I thought federal prosecutors did less than a stellar job in Barry Bonds' steroid-use related trial. But, given that, in the second day of the Roger Clemens trial for perjury in his Congressional testimony about steroids, this isn't even close.

Getting a mistrial on prosecutorial misconduct for not once, but twice, violating the judge's order not to introduce anything related to Andy Pettitte's wife testimony to Congress? After Judge Reggie Walton said any of her testimony was inadmissible?

That all said, it raises this question: Does the government think it will be that hard to win without Laura Pettitte' testimony?

Apparently so, Les Carpenter ventures:

The jury, made up of 10 women and two men, does not seem to be knowledgeable about baseball. Many said they knew little about the game in jury selection and therefore probably know little about Pettitte. It has long been believed in baseball circles that the deeply religious Pettitte would be a brilliant witness against his friend and former teammate Clemens because he is considered so trustworthy. But a jury that does not know Pettitte wouldn’t be as swayed by his words. The government needed to bolster Pettitte’s credibility as much as it could.

But, if the case is really that thin, shouldn't it be dropped like a hot potato? Is there Congressional pressure to "see it out"?