For his part, Allardyce has let it be known that he "needs convincing" that Goodison is the right place for him to return to work after keeping Crystal Palace in the top tier last season and that he would want to be hired beyond the end of this campaign.
However, a run of only one win in seven games under Unsworth, including a 5-1 home defeat to Atalanta and a 4-1 loss at Southampton on Sunday, prompted Everton to resume negotiations with Allardyce over the weekend. He saved the Eagles from relegation but has since enjoyed a break from football. Now leading Ukraine's top tier, they host Manchester City next week requiring one point to guarantee a place in the last 16 of the Champions League.
Sam Allardyce held further talks with Everton on Tuesday and is now expected to be confirmed as their new manager.
It has now been over a month since the dismissal of Ronald Koeman, and having given caretaker manager David Unsworth a fair shot at the job, it is clear that the Merseyside club are in desperate need of a spark and huge boost of confidence.
Dutchman Koeman was sacked by Everton after the club slipped to 18th in the Premier League following a 5-2 home defeat by Arsenal.
When confidence is low, it takes a bit of time to build it back up. Two back-to-back heavy defeats has led to majority shareholder Farhad Moshiri and chairman Bill Kenwright stepping up their search for a new manager. But you would expect him to get Everton safe.
They claim the official announcement "could be made soon", even though the English press is still pointing out other names such as Sam Allardyce and Martin O'Neill.
He is the kind of manager Wayne Rooney will respond to.
A move to Watford, advised by fellow countryman Jose Mourinho, has seen Silva pick up impressive results which have caused Everton to make multiple inquiries about his availability regarding a switch from being the Hornet's boss for just four months. It will be "you do what I tell you".
"But if he doesn't get it, he has done a very good job with the under-23s".