What Obama Might Learn from Chris Christie?

In a column on why New Jersey's Republican Governor will not run for President, notwithstanding the fact that some Republicans are clamoring for him, George Will remarked on Christie's aggressiveness as Governor.  Will observes:

Understanding the first rule regarding political power — “use it or lose it” — he has flexed his institutional muscles. “I don’t want to leave my political capital in my desk drawer to frame when I leave.” A legislature, he says, “is almost genetically predisposed to inaction.” To get it to move on his combative agenda for taming public employees unions, he held 30 town meetings in nine months — almost one a week.

Has President Obama been too passive with Congress?  Should he have been more combative or aggressive?  Or is this an apples to oranges comparison?