“A lowlight was also produced during team drills, as running back James Cook recorded yet another drop on a pass from Allen as the team was backed up inside its own five-yard line. Cook has yet to resolve the drop issues that cropped up a season ago, which leaves cause for concern as the regular season draws near.”
https://www.thedailynewsonline.com/sports/bills-lb-milano-exits-practice-with-apparent-arm-injury-other-injury-roster-updates-from-tuesday/article_6bf0ec72-5995-11ef-9643-83fec1f719c3.html
If this continues to be a problem, I hope the Bills will not rely on Cook in the passing game.