Midfielder Andy Fleming has agreed a new two-year contract with Morecambe.
Fleming, 25, joined the club from Wrexham in 2010 and scored seven times in 39 games to help the Shrimps finish 16th in League Two in 2012-13.
Bentley told the club website: "Andy's had a great season and has all the credentials to be one of the best midfielders in the Football League.
"There has been interest from other clubs in him and I am delighted that he has agreed to join us again."
Kevin Ellison and Ryan Williams have recently agreed new terms with Morecambe, while defenders Nick Fenton and Will Haining have been allowed to leave as a result of the club's tight financial budget.