Turnover of players is nothing new, with seven coming in and nine leaving in the January transfer window, but there are quite a few familiar faces amongst the players out of contract at the end of this season.
Here is a look at who may walk away from the club this summer.
1. Franco Ravizolli
A hugely popular clean-sheet in his EFL debut against AFC Wimbledon to his name, but his other five appearances came in the cup competitions. Photo: Jane Russell
2. Daniel Harvie
A brilliant season from the Scot saw him rack up 46 outings for Manning's side. The club has an option which they are likely to take up on the 23-year-old. Photo: Jane Russell
3. Tennai Watson
Missed 10 games at the end of the season through injury but came back at the end of the play-offs. Like Harvie, had a good season at wing-back and the club has an option to take him on for another season. Photo: Jane Russell
4. Aden Baldwin
Limited to just 16 appearances after signing on a free transfer last summer, but none since January after coming on as a substitute at Portsmouth Photo: Jane Russell