Lions adding a free agent WR?

Though not to the same degree as predecessor Matt Millen, Detroit Lions GM Martin Mayhew loves wide receivers. And so, even though he's already got one of the best -- if not the best -- WRs in the game in Calvin Johnson, there's a possibility the club will be making an addition at the position in the coming weeks. The fact that Nate Burleson and Ryan Broyles are both coming off season-ending injuries also plays a factor.