Worcestershire bowling coach Matt Mason believes paceman Charlie Morris can play for England and he admitted: "What can he be like at 25, that is what excites me."
Morris finished an outstanding first season of LV = County Championship cricket with 52 wickets and was voted the county's Players' Player and Young Player Of The Year.
Mason plans to work with 22-year-old Morris on developing extra pace and becoming more aggressive in his approach during the winter ahead of being back in Division One after the 2014 promotion campaign.
But he feels Morris already has shown mental toughness – a key element when making the step up to international level.
Mason, who is also the club's assistant coach, said: "It is no real surprise to us how well Charlie has done. He does everything right, his work ethic, his approach to his cricket is very simple.
"He doesn't complicate things and if you just run in and bowl enough balls in the right area, and you stay patient, you will get your rewards.
"Can he play for England? I think so. Anyone at 22 in his first year who can run in and get 50 wickets has got lots of ability but is also mentally tough which is what you need to play at the next level.
"There is a long way to go. In Division One, he will learn again how tough it is and that will put him in good stead.
"What can he be like at 25, that is what excites me.
"We've got some plans ahead because he'd like to find an extra yard of pace and I think that is an exciting thing.
"Charlie, with what he does now and being a little bit quicker, will be a great thing for us."
In terms of becoming aggressive, Mason said: "Charlie is one of the nicest fast bowlers I've ever met. But that is just his character. He is a lovely lad. No-one can say a bad word about Charlie.
"We've tried to explain to him that part of your role as a fast bowler is to create some theatre, put some pressure on batters.
"It doesn't mean you have to go out there and carry on too much but you can certainly do it in your body language and in your intent and the way you approach your bowling.
"He knows that and it is just part of the big learning curve he is going through."