He was like the 3rd or 4th option at best in WSH last year (behind Crowder, Reed, Doctson and probably Pryor to start), and he still put up 45 catches for 573 yards. He also had a 70 % catch percentage (in comparison, TY is like a career 55).
I expect Grant to do well. He’s a good player, and certainly not s jag. Plus I expect him to play with a chip on his shoulder after he was kinda screwed over by Baltimore.