Success is far from a guarantee for notable NFL rookies right out of the gate, a notion that seemed to ring even truer for the 2020 season after a preseason-less summer.
Granted, Cincinnati Bengals quarterback Joe Burrow or Los Angeles Chargers quarterback Justin Herbert might have a hard time believing that.
But for a handful of promising top-50 prospects, the results haven't been as rosy by comparison. Whether it's a defender consistently struggling to match NFL speed or offensive players not producing in opportunistic spots, some slow starters stick out more than others.