Sherwood is currently under pressure as manager of Aston Villa, but there are plenty of fans and pundits who still believe in Sherwood - and Jenas is one of them.
The former midfielder worked with Sherwood during his time on the coaching staff at Tottenham, before he replaced Andre Villas-Boas as the manager at White Hart Lane.
His six-month spell as boss ended upon Mauricio Pochettino's arrival, and now Jenas has opened up about what Sherwood was like at Spurs.
He first arrived to help Harry Redknapp back in 2008, and Jenas has told Yahoo! Sport that he was immediately impressed with the way Sherwood stood up to Redknapp and gave his opinions to the then-Spurs boss, even though he was only assistant first team coach.
Jenas also revealed that Sherwood had a storming row with left back Benoit Assou-Ekotto, who Spurs released from his contract last season.
Jenas claims that Sherwood took Assou-Ekotto to task over a performance against Chelsea, and that Sherwood showed his honesty by slamming the defender's display.
"My first dealings with Sherwood were when he was doing his coaching badges at Spurs," said Jenas. "He wanted to become a manager and you could tell he had the credentials for it. I was immediately impressed by the way he tried to reward players who he thought were working hard in training. He was the one person who always stood up to Harry Redknapp and told him who he thought should and shouldn't be playing."
"There was an incident at Tottenham, at a time where he wasn’t even manager, when he was watching a game against Chelsea from the stands and Benoit Assou-Ekotto did something that severely annoyed him. We were in the dressing room after the match, having lost, and suddenly Sherwood came flying through the door."
"I can’t remember what Benny had done exactly, but Sherwood was angrily letting him know what he thought about it. I was taken aback because he wasn’t the assistant manager or manager; he was mainly brought it to observe. But he showed he was prepared to say the things that others maybe weren’t. He’s argumentative, but sometimes it’s good to have an argument," he added.
Jenas clearly has faith in Sherwood's ability as a manager, but with just one win for Aston Villa this season, he needs results - and quickly - if he is to continue at Villa Park.