I'm in the Doug camp on this one, I would like to keep the all time aspect in tact as much as possible.
It is still all-time, it's just all-time best seasons rather than all-time best careers. And I think that's very interesting--in fact, more interesting, because I don't think that a baseball draft that excludes The Bird is as fun.Moreover, since we are able to evaluate the greatness of one season far better than the greatness of a career (because people really disagree about how many great years must be achieved, and whether players should be judged on their best 5 or best 15 years, and whether their end-of-career down years should be considered), it's better to emphasize all-time best seasons. Also, it dovetails nicely with the sim which we have available, one which simulates seasons and not full careers.