Marco Silva remains "hopeful" Everton can seal a switch for Kurt Zouma.
New Chelsea boss Frank Lampard wants to assess his squad before making a decision on the 24-year-old defender, who excelled on loan at Goodison Park last season.
Silva says the Toffees will move on to other centre-back targets if a move doesn't eventuate.
"I am hopeful," Silva told the Liverpool Echo.
"I think I am hopeful like all of our fans are but I have to tell you that we have different solutions because we cannot just have one solution. I have different solutions in my mind but I am hopeful and if we can give our fans this fantastic feeling it will be key.
"But, if not, we have to go in a different way but it is part of the market, part of creating a squad.
"After that position we have three or four more to strengthen."
