Constant change of players and managers at Sunderland are affecting the club's team spirit, midfielder Lee Cattermole has said.
Sunderland, who have flirted with relegation for the past four seasons, replaced Sam Allardyce with former Manchester United and Everton boss David Moyes in the close season but are still without a win in the Premier League this term.
Moyes' arrival signalled the club's fourth-full time managerial appointment since sacking Paolo Di Canio in September 2013.
Sunderland have also made a host of squad additions in the close season, including bringing in Javier Manquillo, Papy Djilobodji, Paddy McNair, Donald Love, Adnan Januzaj and Steven Pienaar as they aim to finish higher in the table.