Who is Gary Johnson, the linebacker just signed by the Redskins?

The Redskins quietly added to their linebacker depth on Saturday when they signed former Texas linebacker Gary Johnson.

It would be normal to wonder about the quality of a player who was available to be signed in the middle of the NFL pre-season, but Johnson — who was first signed and later released by the Kansas City Chiefs — had a lot of fans among analysts this off-season, and his release from the Kansas City roster was a mild shock to Chiefs fans.

On the one hand, we all know that anyone categorized as an undrafted free agent is a longshot to make a team’s active roster. Each and every player who goes undrafted weathers the process for a reason—character concerns, injury history, a…