Losing two players at the same position almost always puts a dent in the depth chart. Losing a pair of defensive linemen after signing day can be downright troubling, especially for Oklahoma football where depth at the position has been a problem in the past few years.
Oftentimes players leaving the program points to other factors within the program, especially when that program is undergoing the kind of scheme change the Sooners appear to be headed for.
Both Green and Tatum were recruited to the Sooners’ engage-and-occupy style of defensive line play, where larger (sometimes slower) guys are expected to occupy blockers and control two gaps on every play.