Liverpool legend Kenny Dalglish has cast doubt on the computer-based methods of modern scouting.
In his column for the Mail on Sunday, Dalglish wrote: "Clubs spend thousands on Prozone, Opta stats and the like but I've never seen a better bit of football tech than the eyes and ears of Bob Paisley.
"He was a genius who could compute any footballing problem and invariably come up with the right answer.
"Players now are reputed to have the best scientific and medical advice available but still seem to spend longer on the treatment table than ever. Bob, through his experience and instinct, seemed to judge exactly when a player could come back without doing himself damage.
"And as for the modern game's global scouting networks, when they can find an Ian Rush for £300,000 or an Alan Hansen for £100,000 - as Bob did - I will be impressed."
