Chelsea spent an initial £72.7million to bring the Germany international to Stamford Bridge this summer but the 21-year-old has failed to impress in his first two outings for his new club.
Big things are expected of the attacking midfielder in the long run, despite the slow start, and Lampard has called for patience as he gets up to speed with English football.
‘Kai has played in various positions through his career,’ said Lampard ahead of Chelsea’s EFL third round clash with Barnsley.
‘He’s played as a No.8, as a No.10, he played a lot off the right-hand side a lot last year for Leverkusen.
‘I have my own ideas about where I see him going forward.
‘I think the main point at the minute with Kai is getting him fit.
‘He is heavily, what I mentioned about the squad, in pre-season mode, because of the situation we aren’t in a position where we can bring in players, back-up players with big levels of money, that we can wait and integrate him into the team.
‘Kai has come here to be a huge talent for this team and we just need to get him fit and ready and then the position will become very clear.’
Lampard hooked Havertz off at half-time after Chelsea went down to 10 men in a 2-0 defeat to champions Liverpool and former Blues man Craig Burley suspects he will struggle to keep his place when the likes of Christian Pulisic and Hakim Ziyech return to full fitness.
‘But he found himself on the field in a more central role with [Timo] Werner at times playing off the left and Mason Mount on the right, but again he was underwhelming.
‘Not questioning his talent, but for the first two games he’s certainly a player that when Pulisic and Ziyech are fit, he’s going to be the one coming under threat because of his first two performances.’