Scott Marshall believes the Papa John's Trophy provides the perfect platform for the Addicks' youngsters to showcase their talents.
Charlton kick off their group stage campaign on Wednesday night when Gillingham visit The Valley (KO 7pm BST).
"I'm a fan of the competition," said the First-Team Assistant Coach. "There are many sides to it in terms of players getting minutes and young players getting opportunities in the bigger picture of it all.
"There are U21 teams in there and I know from when I was an U21 coach how much we looked forward to these games and getting some senior football into you players. It's a vital step for everybody's development and process, and it's an opportunity for people to stake their place and get in the game.
"There's many positives in that and any tournament that you've got a Wembley final in has got to be something that is taken seriously.
"It's a busy time but we'll manage our way through it and make sure the players are well looked after and ready for each challenge they face."
Asked for an update on centre-back Ryan Inniss, who was forced off at Wycombe Wanderers on Saturday, Marshall said: "We're hoping it's not too bad. Certainly the signs are that it's nothing that will keep him out for too long."
Marshall, who was appointed to Ben Garner's coaching staff in late June having worked alongside the manager at Swindon Town last term, is loving life at Charlton. He said: "I'm really enjoying it, it's been great so far. The lads have bought in to a lot of the things that we've tried to introduce and they seem to be enjoying it and enjoying their football.
"There are certainly a lot of positive feelings around the group and around the team at the moment."
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