The former chief scout has returned to Anfield and is set to produce a strategic review of the club's Academy for Rafael Benitez.
"When I signed my new contract, it was agreed I'd have a more significant influence at the Academy and this is an important step in assessing the future direction we will need to take," said the boss.
"I value Frank's opinions and know him well from the time he spent working with me at Melwood. He will liaise closely with the staff at the Academy to produce a comprehensive analysis of the operation there before reporting back to me with his recommendations.
"Clearly, we need to move forward quickly, so Frank has already started work and will accompany the Under 18 team tomorrow when they travel to Huddersfield Town."
