Pompey will be ringing the changes for their Papa John’s Trophy second round tie at Cheltenham this evening.
The players who were so impressive in victory over Peterborough at the weekend will be given a deserved rest during this hectic schedule.
It means that youngsters and fringe members of the squad are going to be handed a chance to impress.
But with Pompey the current holders of the silverware, Jackett is still looking for his troops to make their mark.
The Blues boss said: “We’re going to change the whole side from Saturday because there are younger players who need games.
“It’s important we take a look at them – that’s a big thing. We want them to have opportunities to progress.
"We do want to progress again, but none of the players who were on the pitch against Peterborough will be involved."
“We’re into the knockout stages of the competition now – and it’s one we’ve done well in over recent seasons.
“So we do want to progress again, but none of the players who were on the pitch against Peterborough will be involved.
“It’s a little bit too early for Michael Jacobs to come back and I think Ipswich on Saturday is more realistic.
“Coming off the back of a knee ligament injury, he’ll need a full week of training and we’ll see how that goes.”
Jackett welcomed the return of 2,000 members of the Fratton faithful to watch the League One win over Posh.
He said: “I do think that home advantage comes back now – certainly for us. The fans have missed it and will generate a good atmosphere.
“It made a massive difference at Fratton Park on Saturday and, in the overall picture, it’s just nice to see supporters at games again.”