Albion are seventh in the Premier League and have delivered some encouraging performances under the Italian after he replaced previous boss Graham Potter, who left for Chelsea in September.
De Zerbi has now had ample time to assess the strengths and weaknesses of the squad as Albion hope to continue their push for Europe when their top flight campaign resumes on Boxing Day at Southampton.
The head coach wants new players to arrive in the January window and will also hope to keep his star performers such as Leo Trossard, Moises Caicedo and Robert Sanchez – all of whom will hope to see game time for their respective countries at the Qatar World Cup.
But, as it stands, De Zerbi has a core of about eight players, who are almost guaranteed a start if fit. Here, Sussex World takes a look at eight certain starters and the nine who could be on the fringes when the season resumes...

9. Pervis Estupinan - ?
A solid start to life on the Albion left flank. Cucurella set the standard so high that Estupinan was always going to be up against it. Had his best game against Chelsea and much more to come from the Ecuadorian Photo: Christopher Lee

10. Danny Welbeck - ?
Offers Albion a focal point and De Zerbi is a huge fan but yet to score in the PL this season. Missed the Chelsea match, which was oddly Albion's best attacking performance of the season. Photo: David Price

11. Adam Lallana - ?
Keeping Lallana fit enough is the main challenge. Was superb for 60 minutes at Wolves and then broke down again after five minutes against Villa. Class player but fitness is a constant concern. Photo: Ryan Pierse

12. Mitoma - ?
What an impact the Japan international has had this season. Makes a huge difference from the bench but has shown in recent matches that he's capable of changing games as a starter. A real talent and perhaps one that De Zerbi cannot ignore. Succession planning if/when Trossard exits. Photo: David Price

