4. Brandin Cooks, WR
Looking at Cooks' statistical profile, it's hard to consider his season overrated as he had the second-most touchdowns on the team with eight. However, his impact on the offense was less than what his numbers suggest and what Cowboys fans had hoped for.
When Cooks was acquired last offseason, he was seen as a perfect complement to CeeDee Lamb. The veteran wideout was supposed to be a big playmaker with his impressive speed. Yet, even though he finished the season strong with five touchdowns in his last seven regular-season games, he was mostly an afterthought all season.
He finished the season with 54 receptions and 657 yards. He had seven games with less than two receptions, and only received for more than 50 yards three times all season. Most of his damage in terms of receptions and yardage came in one game; the Week 10 matchup against the Giants when he went off for nine catches, 173 yards, and a touchdown.
This sort of boom-or-bust performance wasn't what Cowboys fans had in mind. Cooks still showed plenty of explosiveness and athleticism, but he wasn't the game-breaker across from Lamb that he was supposed to be. A more consistent wideout who doesn't disappear for large stretches of games would have been preferable.