Mark Wallace has been appointed Glamorgan captain and will replace departing overseas player Alviro Petersen next season.
South African Test batsman Petersen's one-year contract expires at the end of the season.
"I'm very proud, it's a dream to captain Glamorgan," Wallace said.
"We were told individually this morning [Friday]. The feedback was that everyone who was interviewed was very impressive, which you'd expect of the characters involved.
"All those lads will be involved next season and they'll all be a support to me in the job.
"I wouldn't have accepted the job if I felt it would take anything away from my own game, I'm very hopeful it will improve it."
Wallace made his debut for Glamorgan in 1999, aged just 17, making him the county's youngest-ever wicketkeeper and is in his 14th season with the Dragons.
The Abergavenny product, who signed a new contract this year along with Rees, said he would be selecting his own vice-captain and lead Glamorgan forward.
"A lot of it will be to assess where we've been this season and probably learn from things we've done this year," Wallace added.
"We've been involved in quite a lot of close matches this year without actually coming up on the winning side of things.
"It's good that we've been involved in those games, so that people have had the experience of playing in pressure situations but it's about getting back to winning.
"We've got Marcus North coming over who will be an exceptional overseas player, and personally I'd like to see Glamorgan players pushing for higher honours."
Meanwhile, there are doubts over batsman Will Bragg's future at the Welsh county, as BBC Sport Wales understands the 24-year-old has been approached by other counties.
Bragg, who generally bats at number three, has had a decent season and has amassed 922 runs in County Championship Division Two so far at an average of 35.46.