In fact, Chelsea was able to dominate the match compared to Nottingham, but Chelsea had difficulty breaking into Nottingham's goal. Lack of player creativity is the first reason, but a lack of consistent strategy is also a reason. I didn't find Nottingham playing well except being really good defensively which combined with taking chances, it won them the game even though it was completely unexpected.
The bottom team uses a defensive strategy to win points against the top team. The weakness of Pochettino's strategy is that he was able to find a solution to find the net even though they had a lot of shots in total. Poor finishing is also an excuse, but of course Pochettino is under pressure at the moment.
It's not just enough to dominate the game, if in the end Chelsea has to swallow defeat at Stamford Bridge, their home base. Based on match statistics, Chelsea controlled 76% of ball possession, 21 total shots, but only 2 shots were on target. Unfortunately, they were unable to convert every opportunity well and turn it into a goal.
IMO, again I have to say, that Chelsea doesn't have a pure striker who is established and hungry in terms of scoring goals. that means, Pochettino can't just hope to rely on Nicolas Jackson. he has to think of another way, if he has to, Pochettino should give another player the opportunity to become the main starter. he can also experiment with other systems, rotating some of his players, especially the center forward. If not, Chelsea will always have difficulties in every match they play. Unfortunately, several of Chelsea's center forwards were injured. but what is certain is that Pochettino must improve his team's squad. otherwise, Chelsea will struggle to finish in the top four of the Premier League as they had hoped.