3. Sony Michel
Sony Michel's NFL career is a cautionary tale of why NFL teams don't typically value taking running backs in the first round of the NFL Draft. Granted, every situation is different, but Michel flamed out very quickly in the league and was not worth the first-round pick that the New England Patriots used on him.
Michel had a promising rookie season but things only got worse as his Patriots career continued. The team cut ties with him before his rookie contract was up, trading him to the LA Rams for a fifth and sixth-round pick.
Michel was not much better there under Sean McVay. He rushed for over 900 yards but averaged only 4.1 yards per carry and found the endzone only four times in 208 carries. The Rams let him walk after 2021.
Miami signed Michel before the 2022 season but cut him as part of final roster cuts before the season. That opened the door for the Chargers to sign him and it was viewed as a great move as the Chargers were taking a flier on a former first-round pick with potential.
It just never worked out. Michel struggled any time he saw the field and he was quickly played out of the running back rotation altogether. He was released at the end of the season and has not found a new home since.