Ben Roethlisberger wants to see Justin Fields line up at wide receiver

Ben Roethlisberger said on his podcast,Footbahlin, that he likes the Justin Fields package for 5-7 plays and wants to see Fields line up as a wide receiver. Is this too gimmicky? Ben second guessed some of Mike Tomlin's decisions on 4th down and was curious if Tomlin wanted to punt, but we liked Tomlin being aggressive.