The former Liverpool captain returned to Merseyside and put on a stirring midfield performance full of guile and not short on gusto.
Based on such a display, Glenn can only see good things for the future if Jamie manages to stay largely injury free.
"It is a great sign for everyone at the club and Jamie in particular," said Glenn. "I thought he did excellently in his first 90 minutes, he didn't have a 90 in pre-season.
"He showed a lot of grit and character to come through that on a hot day and also to pass the ball like he did.
"We're delighted for him and I think people were a bit unsure whether Jamie's would be bright at this level, but he's proved he can play. Let's hope that he can go on from here and play for many years injury free."
The boss was also delighted to get Les Ferdinand playing again, the only shame being that his goal did not prove to be the winner.
"Up until three days ago, we weren't really thinking about having him in the squad. He didn't play any pre-season games, apart from a training ground match, due to having a pin in his wrist.
"It allowed him to train but not play any matches. We took a chance by throwing him on and we thought he could give us 20 minutes and he's come up trumps for us.
"It is a pity for us and for Les that it wasn't the winner."
Glenn reserved praise for the contribution of Jamie Redknapp after his full competitive debut for the club against Everton on Saturday.