You made it sound as if we were playing exciting football under Lampard when it was all about just spamming crosses into the box. It benefitted only a few players in the team and it also helped that we played a lot more poor sides under Lampard than under Tuchel (Barnsley, Morecambe, Luton at SB to name a few).
Is it really Tuchel's fault that we don't score enough goals? The players have missed so many chances. Off the top of my head, we have Werner v Everton, West Ham, Real Madrid + Havertz v Arsenal, Real Madrid, Leeds, Brighton + Ziyech v Liverpool, Man United, Man City, Fulham + Pulisic v Porto, Sheffield Utd + Mount v Real Madrid.
The irony of complaining about not scoring enough goals is it was Lampard's focus on attack and his neglection of the defence that got us into trouble in the first place. That Lampard approach was working till we started playing the better sides in December and suddenly, it cannot be sustained because our attacking play was bad and our defence was even worse that it failed to give us a chance of winning games.
Tuchel has at least turned that around. Does he want us to score more goals? Am sure he does but again, it's not his fault that the players somehow contrive to miss chances, like against Real Madrid last week. If you compare shots, big chances created etc under Lampard and Tuchel, they aren't actually that different at all. (N.B. This was taken from an article that was written about 2 weeks ago and it's the stats for this season's Premier League)
Aspects - Under Lampard v Under Tuchel
PL Games - 19 v 14
Total Shots - 263 v 213
Average Shots Per Game - 13.8 v 15.2
Big Chances Created - 43 v 33
Average Big Chances Per Game - 2.26 v 2.36
Goals Scored - 33 v 18
Goals Conceded - 23 v 8
Another irony about complaining about the lack of goals under Tuchel is that we have picked up more points under Tuchel in less games than under Lampard (35 in 17 compared to 29 in 19), which in other words suggests we have stat padded the goals along the way in some games under Lampard.