Sherwood's wayward passing lead to jeers from the home support and Redknapp said following the loss: "People forget that the season before last Portsmouth were losing 4-0 to Leyton Orient.
"People have got short memories - it goes a little bit boss-eyed today, you're under the cosh and suddenly you find one or two people turning on Tim Sherwood.
"You don't need that - it's not as if they've been brought up on good football here for the last six years"
Les Ferdinand, who scored the opener, joined in the fun stating: "I've played with Tim and he's a class act. But when things start going wrong the crowd single out a player - it happens all over the country," said the man of the match.
"What I like about Tim is that even with that going on around him, he still looks for the ball and tries to make something happen."