#14 Nigel PearsonEmbed from Getty Images
The final temporary boss of the list, Nigel Pearson had a win percentage of 75%, winning three and drawing one of his four games in charge after being promoted from assistant.
He stepped down from the role and went on to have a long and successful managerial career, but his four games, which included wins over Leeds, Ipswich and Crystal Palace, laid the foundations for his successor to prosper.
#13 Brian LittleEmbed from Getty Images
Joining in August 1999, Little saw Albion into the millennium and almost into the third division. He was sacked in March 2000, with WBA languishing in the lower half of the Division One table. After a 3-0 defeat to Birmingham, he left his post which places him 14th on this list.
# 12 Alan IrvineEmbed from Getty Images
Another woeful appointment on a permanent basis by the board, the Scotsman joined Albion in 2014 but only lasted six months.
He oversaw West Brom’s fall to 16th in the table. He had a win percentage of 22% which included Albion’s greatest home victory in the Premier League a 4-0 victory over Burnley.
#11 Pepe MelEmbed from Getty Images
A Spaniard who never seemed to get to grips of the Premier League in his short stint in the English game was Pepe Mel, who joined WBA in 2014.
He managed to keep West Brom up with three wins in 17 games, giving him a win percent of 16%; however, as he completed his primary aim of keeping the Baggies in the Premier League, he ranks 11th in this list.