Former Everton winger Andrei Kanchelskis says caretaker manager David Unsworth should be given the manager's job until the end of the season, reports Sky Sports.
The two-time Premier League winner said: "It's better if Everton keep Unsworth and Ferguson until the end of the season.
"If a new coach comes in he needs time to look at the players and some coaches come in and say 'I don't want this player, I want to buy a new player' which will be extra money.
"For me Everton should keep these on until the end of the season and after see what happens."
Kanchelskis, who played nearly two years at the club, is confident Unsworth and Duncan Ferguson can help Everton to safety and will be well supported by the Goodison Park crowd.
"I don't think it's that difficult for those two," the 48-year-old said.
"Duncan has worked there many, many years including with Koeman and Martinez while Unsworth's an ex-player who understands what's happening inside the club and knows every player.
"I don't think it's a big problem for them. The fans will help them because they love them; so again, I think they should keep them until the end of the season."