Actually I am going to keep going.
In my mind the QRH is a guide that SHOULD be followed, BUT, if you have a damn good reason (like loosing your engines at 2000 feet out of LGA) you can deviate from it. Just be ready to answer, "why did you deviate from the QRH?", when you sit down and talk about what happened.
USAirways 1549 is a perfect example of deviating from the QRH and using it moreso as a guide.
Skiles was actually the Pilot Flying when the birds hit the aircraft. When Sully realized there was a problem, the first thing he did was, and this ultimately saved their ass with the Airbus flight control system, was to start the APU. No memory items for him to do so, they didn't have the QRH out yet (starting the APU is on the QRH Ditching Checklist for the Airbus, but it is quite a few steps into it), Sully just used his piloting skills and understanding of the situation as it was unfolding to start the APU to get that generator online. Then he said 'my control' and took over control of the aircraft. Why? It wasn't because he thought he was a better pilot than the First Officer....he just realized that the First Officer was a new transition to the Airbus and would have a better understanding of the QRH as he recently went through training.
Then Skiles pulled out the QRH and started to go through the ditching checklist. Problem with that was it is like 3 pages long and was designed for an aircraft to ditch from altitude, not 2000 feet. So there was no way he was going to finish it, he knew it, put the QRH down, and helped figure out where they were going to put the aircraft.
Perfect example of the balance of using the QRH as a very important guide, but also using piloting skills to handle the situation.