Would Picard trade Data for a superior Bridge Officer with a rare ability? I doubt it. At the same time I don't want to gimp myself by sticking with crappy BOs.
Certainly not! Data would effectively be a Purple Unique Bridge Officer. However, I can pretty much guarantee that he would happily trade Doctor Katherine Pulaski for a better Medical Officer. And I'd be willing to be that he regretted not getting rid of Ro Laren before she betrayed Starfleet.
BO_Canuck (hmmm... that doesn't sound right!)