Kevin Amankwaah, Mark Molesley and Rhys Evans are amongst the experienced players released by the Grecians and Tisdale says financial constraints mean a focus on youth.
Jamie Reid, Jordan Moore-Taylor and Jake Gosling all broke into the side last season and the long-serving manager will focus on developing their homegrown players in 2013/14.
"In terms of new players, there's probably no more than one coming into the club," he told BBC South West.
"Who that will be yet I don't know, as normal at Exeter City we're not first on the list for these players.
"I've got a number of players who are of interest to me, I'll be waiting to see what happens over the next month or two, and potentially there will be a signing made before we start back for pre-season.
"We had four or five young players come into our squad and I'm hoping they will continue their improvement and start to have more of an impact in the team.
"The team will be changing, but it will be by the young players coming through."