I really hope he does...
...I do not write this lightly, because Brian Westbrook has long been one of my favorite Eagles. I want Brian to retire. Given the recent concussions controversy in the NFL (most of it being Goodell confused over the idea that repeated head trauma could lead to later cognitive impairment--link provided below) and the NFL's recent hearings on the subject, I see that the league is finally waking up to what the NFLPA and neurosurgeons across the country have been saying for years. Ultimately it will be Brian's decision, but as Eagles fans, we need only to look at the sad story of Andre Waters (one of my all time favorite Eagles) to see what can happen from the lack of attention, knowledge and medical care on this most serious of issues. I love football as we all do, but am very concerned about Brian Westbrook's health and life after football, not just what he does (and has done) for us on the field.
Incidentally, the NFL tried to silence and shun the neuropathologist at the University of Pittsburgh whose findings ultimately forced the NFL to change its position on this subject.
Good luck, Brian.