Doug Marrone was not pleased with the Buffalo Bills' decision last May to trade up for Sammy Watkins.

Marrone was not in favor of Buffalo surrendering a future first-round pick to the Cleveland Browns in a trade that did not involve a quarterback, sources said.

Some sources claim Marrone stormed out of the draft room, while others contend he simply walked out.

Marrone opted out of his contract with the Bills after the season concluded.