In terms of regrets I still think in all of the options that Bayer Leverkusen had then Erik Ten Hag was the best candidate with the right portfolio of track winning record among the people shortlisted for that interview. So it shouldn’t be a thing for them to regret even if it didn’t work out
I think all eyes are now in Bayer Leverkusen after the departure of many key players but also because there is still interest in some of the remaining ones like Granit Xhaka from Inter Milan for example.
Now Eric Ten Hag was able to recruit few players that replaced those who went out of the team, yet some positions have only one player and depending from the strategy he will adopt, there will be difficulties in case of injuries. This problem should be taken in consideration because the upcoming season will be harder than the previous one.
I hope that Ten Hag gets it right this time, because if his decisions worsen the team performance, it's going to be a shame on him. Having players without backups will be a big challenge should incase, any of them is injured or drops form. Ten Hag can make the club proud of him, if he knows what he's doing. Leverkusen have suffered from poor performance before Xabi Alonso strengthen the club.
Ten Hag would have to be careful with his job at Bayer Leverkusen because for anything that should make him give a performance below where he met the team from Xabi Alonso then it's going to be a dent to his coaching record. It will be very risky that he goes into the new season without backup players to certain critical positions in his team. Bayer Leverkusen is one of the best team presently reckoned in the bundesliga after Bayern Munich so a lot of high expectations will be fixed on them for next season's competition in their domestic league.