Could be that "now comes the bunching up." But if that was the plan, it would occur whether we took 2 weeks to get to Baghdad, or 2 months.
As for "too easy," that's a perception we have based on news reports and not being there. My take it that this has been a huge, difficult effort, with some conflicting objectives, and that the coalition has done a very good job so far. I trust the military leadership to continue to exercise good judgement.