Things Lincoln Riley is good at ... coaching football, drawing up plays and winning games.

Things the OU head coach is bad at ... brisket -- clearly.

The 37-year-old Sooners head man showed off his Easter dinner on social media Sunday ... and the meat he cooked was so dry, some questioned whether it was actually pumpernickel!!

Check out the photo Riley shared ... the meat was cooked to a crisp -- and the poor dude was ROASTED over it!!!