Under Xabi Alonso, Hoffenheim and Bremen were no problem for Leverkusen. Seeing how Ten Hag didn't have the power to beat them today, it's fair to say that Ten Hag doesn't have a good game strategy to defend and attack well. Maybe he's not into exploring new game strategies anymore. Using the same old tactics is dumb and easy for others to predict.
This is not about the players but about how the coaches use the weapons in their arsenal to get the win. This is beyond expectations, not because it is still early in the league so we have to consider it, but precisely because their opening has been so bad that we don't believe it will be good for Leverkusen this season.
Obviously who does not know that Leverkusens current fate is not about the players but the poor tactical approach of Ten Hag, if they get him sacked at this point I will not consider it unfair because so far he has not proved in any way that he is fit for the role enough to keep risking it with him. This is not even an issue of been too early because if we are to go in that direction we would make considerations if their performance if fine and they are only struggling with results but sadly that is not the case because they are struggling with both and are not looking like they are getting it correct any soon.