Sesko joined from RB Leipzig for just £74M and is yet to justify such a price tag after scoring just five goals in all competitions for the Red Devils so far.
The Slovenia international is considered to be one of the best young strikers in Europe was dropped for the Manchester Derby win over Manchester City by interim manager Michael Carrick as faith in him slowly falters.
Speaking in association with Mr Q, Sherringham told GOAL that Sesko is not ready to lead United as he is still learning as a player.
“I’ve quite liked Benjamin Sesko recently. I thought he played very well at Leeds, linking play up. He scored a couple of goals recently. But he is a young lad, still learning his game.
“There is a big difference between a young lad enjoying his game for an average Premier League team and then going in at Man United and being expected to lead the line for a top club and challenging for honours.
“He’s still finding his game. I believe he will be a good player. It’s not what Man United need at the moment, someone learning, they need the finished article in there.”
Sesko has only scored four times in 17 Premier League appearances and the young striker has a lot to learn if he is to succeed in the English top flight as fans begin to lose patience.
He will get another chance to shine against Arsenal this weekend in what is one the toughest clashes of the season.