8. Greg Monroe
Monroe was the seventh overall pick in 2010 by the Pistons and quickly became their starter. He made the All-Rookie team in 2011 and averaged 15.6 points, 9.7 rebounds, 2.5 assists, and 1.2 steals in 32.2 minutes per game over his final four seasons in Detroit.
Things started going downhill when he signed with the Bucks in 2015. Milwaukee gave him a three-year deal worth $50 million, which was one of the largest contracts in franchise history at that point. Monroe slipped out of the starting lineup in year one and his role continued to diminish in his second season in Cream City.
Greg Monroe signed a rest-of-the-season contract with the Philadelphia 76ers in April 2019. They were his fourth different team in the last two years. Philly desperately needed a bench big man behind Joel Embiid and Monroe played in ten of their 12 playoff contests.
He spent the next two years overseas before one final season in the NBA where he played 14 games with four different teams in the 2021-22 campaign. Monroe is only 33 years old, but his decline started at 25 when he joined the Bucks. He was nearing his 29th birthday when the 6’11 big man joined the 76ers and his best playing days were years behind him.