Chelsea bought American wonderkid Christian Pulisic, who can operate in similar position, in January, but Lampard should not try to use Pulisic as previous Chelsea managers did Hazard.
After weeks of speculation and public comments from Sarri suggesting he was keen to take up the offer to join the Italian champions after claiming he was missing his Italian homeland, a deal reported to be in the region of £5m has been thrashed between the two clubs.
Juventus Director of Sport Fabio Paratici travelled to London to this week to negotiate Sarri's departure with Chelsea. Chelsea were surprised and dismayed at the breakdown in the relationship with a vocal section of the club's support who were frustrated at the lack of drive and urgency in much of the football.
They haven't really gone for any experimental appointments, but now they are suggesting that Lampard has enough experience after one year as a manager at Derby.
The 40-year-old earned plaudits for taking Derby into the Championship playoffs in his first year as a manager - even if they just missed out on promotion to Aston Villa, for whom former team mate John Terry is part of the coaching staff.
Sarri succeeded Antonio Conte as Chelsea manager last summer after spending three years at Napoli.
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Former Chelsea boss Glenn Hoddle believes it is the "right time" for Frank Lampard to step into the hot-seat at Stamford Bridge.
The Blues legend was drafted in to work with Sarri and pass on his knowledge of the club and English football.
Allegri had appeared on the initial list of candidates to replace Sarri at Chelsea, but has now insisted he will take a break from management, effectively ruling himself out of the Stamford Bridge running.
The ex-Chelsea man would jump at the chance to manage his former club I'm sure, but, having just lost their best player in Eden Hazard to Real Madrid and now being under a transfer embargo, perhaps this might be a fairly hard time to take the reigns.
"Does he have to wait until he is 50 to be ready?" "If he feels ready I don't think it is too early", he added.