Cesc wouldnt win too much respect for what he's done as a coach thus far but he has the charisma and due to his skill and experiences as a player and captain he knows what it takes to be a top player.
Iraolo has more coaching experience,good record developing talent and generally getting the maximum out of players,good balance between nurturing and tough love.also I thought previously he would just go back to Spain.but I've read he actually has a desire to stay in Prem and relocate to London.
Those 2 I think would be the best we could get.
Silva seems an option but despite an upgrade over majority of recent hires. Despite his much longer experience he is the king of the low expectations family clubs.