Manager: Russell Slade
Position last season: 20th
Nickname: The O's
Ground: Brisbane Road
Players in: Gary Sawyer (Bristol Rovers, free), Anthony Griffith (Port Vale, undisclosed), Mathieu Baudry and Michael Symes (Bournemouth, free), Ryan Allsop (Millwall, free), Ryan Brunt (Stoke, loan), Nathan Clarke (Huddersfield, free), Lloyd James (Colchester, free)
Players out: Dean Leacock (Notts County, free), Matt Spring (Wycombe, free), George Porter (Burnley, free), Terrell Forbes (Chesterfield, free), Jamie Smith (Dover, free), Jonathan Tehoue, Jamie Cureton, Tom Lovelock, Mike Cestor (released)
Key man: Dean Cox - The versatile winger can be the spark to ignite Leyton Orient this season if given the chance.
Chances: Boss Slade has overseen a summer clear-out after last season's struggles, and he must get his new-look squad to gel quickly if they are to avoid a repeat.