This is exactly what the Bills do. Rotating him will negate much of the “lack of effort, standing up straight because he’s too tired, etc”
“The sweet spot for Walker early in his career will be as a specialized weapon in a heavy rotation. Give him 20-25 snaps per game where he can pin his ears back and hunt, especially in a multiple-front defense that lets him work from different alignments. His natural power and surprising lateral quickness create consistent problems for interior offensive linemen, particularly when he's schemed into one-on-one situations.”