Now that the NFL draft is over, most fans are warming up to their draft picks. However, there is just as much of a chance that they struggle out of the gate now as there was when they were drafted. What could hold the San Francisco 49ers' rookie class back? San Francico 49ers must avoid these scenarios for 2026 NFL Draft class De’Zhaun Stribling For Stribling, he flashed at Ole Miss, but was inconsistent at Ole Miss. If that inconsistency with his route running continues, he might struggle to beat out Christian Kirk for a slot role. He could flash here and there as a fourth receiver, but might not be able to produce 500 yards .  Romello Height Height is undersized and struggles to play against the run. If his speed does not translate to the NFL, tackles are going to stonewall him. There is a real chance that Height is a complete liability who struggles to stay on the field.  Kaelon Black Black should have a safer floor, but you never know with Kyle Shanahan's backs.…