Dennis Greene wants to build from the back - after announcing he has released six players.
Defenders Jason Field, Paul Lister, Gary Silk and Phil Watt have all been told they are surplus to requirement at the Jakemans Stadium.
Midfielder Anton Foster and keeper Dan Haystead have also been told they don’t feature in Greene’s plans.
After announcing last night he has a deal in place with a yet-to-be-named keeper, the boss is now turning his attention to building a new back line.
“We’re not far away everywhere else. Once we’ve got a central midfielder in and a target man in for a plan B, it’s just the defence we need to look at,” he said.
“We need to build up from the back. We’ll start with the keeper then build a back four.”
Greene also hopes to have new players snapped up as soon as possible, adding: “I’ll deal with it this week, I like to get things done quickly.”
Marc Newsham, Ian Ross and Spencer Weir-Daley have all signed deals for next season, while offers are on the table for Ben Fairclough, Conor Marshall, Greg Mills, Ben Milnes, James Reed, Nathan Stainfield and Tom Ward.
United have made no mention of their plans for keeper Ricky Drury, who has been on loan at Sleaford Town.
Meanwhile, forwards Charley Sanders and Jordan Nuttell, plus keeper Sam Vince, are still technically with the youth team squad and are expected to be invited back for pre-season training.
Some released players have been unhappy with the way they have learned their fate.
Haystead wrote on Twitter: “Just like to say thanks to all @bostonunited for everything just read on here my boston days are over.”
Field echoed his sentiments, adding: “Wow finding out you’ve been released by twitter #amateur. Thanks to all the boys at Bufc obviously wasn’t ment to be #onwardsandupwards”