Here’s who Sky Bet have as the current favourites for the job...
1. Herve Renard
Odds: 16/1. The Frenchman last managed Morocco at the 2019 Africa Cup of Nations, and has had previous stints with the likes of Lille and Sochaux. Photo: JAVIER SORIANO
2. Fatih Tekke
Odds: 16/1. The former Turkey star has managed extensively in his home country, but is yet to win a trophy as coach. Photo: Dima Korotayev
3. Aitor Karanka
Odds: 16/1. He last position was at Nottingham Forest, where he picked up a 30% win rate in his one year spell. Photo: Ashley Allen
4. Gianfranco Zola
Odds: 14/1. He was the initial front-runner for the job, but his odds have lengthened considerably since last week. Photo: Clive Mason