Farhad Moshiri admits he may need to change his "impatient" ways after appointing Frank Lampard as Everton's new manager.
Lampard has signed a two-and-a-half-year-deal to replace the sacked Rafa Benitez and looks set to add Donny van de Beek and Dele Alli to the squad before tonight's 11pm deadline.
Everton could yet also target a defender before the transfer window shuts.
The 43-year-old is the sixth permanent manager appointed by Moshiri in as many years and now Everton's majority shareholder concedes he may need to keep more of a steady hand in the future.
Moshiri has also urged the supporters to do the same.
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“I will provide the system to support him," Moshiri said.
"The process is vital to ensure all components of Everton fully support the manager. Fans are the most important part of that.
“You can buy any player; you can’t buy the 12th man.
“The biggest thing for us - for me, for Bill [Kenwright, Chairman], for all parts of this great and beautiful club, is to get behind this manager.
“Let’s unite behind the team, give the team the 12th man and start moving up the table.
“Our future is bright. We just need to be united. Maybe together, me and the fans should be more patient - I am also impatient.
“We have to get behind the manager and give him that Goodison feeling, and I think success will come with that. Throughout the team there are strengths, so if we get the confidence back and the Goodison crowd gives them the 12th man, that is the most important signing we can get in this window.”
The appointment of Lampard has been "aligned" with the club's strategic review and Moshiri has confirmed that Tim Cahill has been helping him during the process.
“We ensured a lot of expertise went into it,” he added.
“We had Graeme Sharp, with his vast football experience, and our Board. Tim Cahill was [also] advising me personally and attending all the interviews. He did very diligent, serious work.
“Our Chairman is very important. We are keeping the Chairman as long as we can. He manfully fulfils his functions and I really appreciate what the Chairman does.”