Benjamin Watson makes his long awaited return to the grid iron Friday, but you sure wouldn’t know that if most of your Boston sports knowledge comes from the radio dial.  That’s because No. 84 has been largely forgotten, replaced by No. 87.  No, not that No. 87 (Ben Coates). The man is Chris Baker.  Baker comes from our neighbors to the south, the J-E-T-S (Jets, Jets, Jets!), where he’s spent the entirety of his eight-year career.  He put up some fairly i...