Shearer wrote in The Sun: "You don't score 121 goals in 38 league games as he did in winning the Spanish title by being boring.
"What his teams are is disciplined and organised.
"Chelsea fans should really be licking their lips already.
"I know some see it as an accident waiting to happen given the fact he fell out with Blues' billionaire owner Roman Abramovich last time round.
"I would reckon that both men will have learned a lot from that experience.
"Enough, in fact, to make sure it will not happen again."