re: I am seriously wondering can Clemson block Alabama

Here's Coker and Alabama:
Wisconsin- #55, 2 sacks given up
MTSU- #81, 0 sacks given up
OM- #50,1 sack given up
ULM- #64, 2 sacks given up
Georgia- #94, 0 sacks given up
Arkansas- #99, 2 sacks given up
TAMU- #24, 1 sack given up
Tennessee- #42, 5 sacks given up (holy shite)
LSU- #24, 3 sacks given up
MissST- #42, 0 sacks given up
Auburn- #102, 0 sacks given up
Florida- #5, 2 sacks given up
Mich. State- #13, 2 sacks given up

So Alabama and Coker did about the same. Bad teams at sacking generally didn't get sacks, good teams generally did. Some outliers like the 5 given up during Tennessee, and #99 ranked Arkansas getting 2 sacks, but in general, about the same.