Ten Cate says Van Dijk should consider playing at a higher level than the new Premier League champions.
"It is up to him," said Ten Cate. "There has to be a new Barcelona and there is quite a bit of money there.
"He is the first one I would buy. Barcelona's Achilles heel is the defence."
Dutch great Marco van Basten thinks that a transfer to a top club in Spain would be a step higher for Van Dijk.
"The biggest players still play in Spain. The top players, such as (Lionel) Messi and (Cristiano) Ronaldo, are going to Spain anyway.
"The players who win the Ballon d'Or are from Spain."