Coughlin upset with Schiano, Bucs after Giants comeback win

In boxing, this is what you call an undercard. 49ers coach Jim Harbaugh and Lions coach Jim Schwartz are renewing hostilities on Sunday night, which meant no one saw it coming when Giants coach Tom Coughlin and Buccaneers coach Greg Schiano appeared to exchange some unpleasantries after the final gun of the Giants’ 41-34 win.…