While many West Ham fans have started to embrace the excitement around the potential capture of a man who has led his La Liga side to back-to-back Europa League titles, there remains an equal proportion who feel the appointment would be a risk.
The 'Yes' camp believe the former Valencia and Almeria boss could bring back their cherished philosophy dubbed 'the West Ham way'.
But sceptics say his lack of English and the fact he is untested in the Premier League means it is simply too big a risk to take with West Ham facing up to two of their most crucial ever seasons, the last at their Boleyn Ground home and first at the new Olympic Stadium.
But now the lid has been lifted on the revered manager by the Sunday Telegraph's football correspondent Jason Burt who was giving his lowdown on the potential appointment to West Ham's official website.
And Burt revealed that daily blood tests for players, team bonding meals and a fierce sense of loyalty will be some of the things he brings to the club.
"He is an intense and very organised coach," Burt said.
"He has a good record of improving players and is obsessed with video planning.
"The players will have a blood test every morning to check on their hydration and oxygen levels. He insists that the players all eat together as a group before they leave the training ground. The players are very loyal to him."
Burt did concede the language barrier could cause problems for the Spaniard but insists he is an intelligent man who would 'learn very quickly'.
He added: "For me Emery is an interesting choice and is highly rated. He will be able to get the balance right of playing in the Europa League and then back to the Premier League."
And he would need to with West Ham's season due to start before any other Premier League team on July 2 as they face up to the realities of their Europa League qualifiers and the potential for an extra 23 games should they go all the way in the competition.