Brett Houston will skipper Lincolnshire in Minor Counties cricket this season, starting with Sunday's one-day clash at Shropshire.
The long-serving seamer replaces Paul Cook, who cannot commit to the side for the three-day game this year because of business commitments.
However, the talented batsman could still be available for the shorter form of the game.
"Paul has just started his own new fitness business and can't commit to playing six three-day games," said Lincs director of cricket Mark Fell.
"We had no choice but to make the change. Business comes before anything I'm afraid.
"Brett will be captain for the whole season. He's experienced but the main reason we've gone for Brett is because the young lads respond to him well, and we'll have a very young side this season."
Lincs open their season with one-day cricket and the Minor Counties Trophy. Following Sunday's group opener against Shropshire at Shrewsbury, Lincs face Wiltshire at Woodhall Spa on May 5.
Houston's side will then travel to Norfolk on May 19 before playing Suffolk at Bracebridge Heath on June 2.
The top two in the group will progress to the quarter-finals.
Lincs begin their Minor Counties Championship campaign against Suffolk at Sleaford on June 9.