Regarding the Sebastien Haller error, Ten Hag was quoted as saying “In the first instance [the technical director] Marc Overmars and I are responsible. Of course, people make mistakes, but this is a top sports organisation. This mistake should never have happened. Haller is of course also very disappointed. Although he also understands that this was not done on purpose.”
https://www.theguardian.com/footbal...rd-signing-sebastien-haller-for-europa-league
And regarding Virgil Van Dijk, I agree it was a collective failing at Ajax, Feyenoord and PSV. But it was made to look worse for Overmars due to the signing of Van de Hoorn and the comments of the Groningen Sporting director, who said that he approached Overmars on several occassions on the behalf of the player, who wanted to join Ajax but Overmars had no interest and instead had ear marked Van de Hoorn as a target instead. Now I'm not criticizing Overmars here because I completely understand mistakes happen and will happen. The reason I pointed the above out was because had the same happened at United with us failing to register our record signing for European competition and failing to sign a CB (who would go on to be the best in the world in his position) who was itching to join the club. Then the criticism on here would be off the charts as they say.
I do agree that there has to be a streamlined approached to recruitment. That's why it's for the best we allow the recruitment department to select the head coach who will come in to work with them. Michael Edwards at Liverpool was a laughing stock among Liverpool fans prior to the arrival of Klopp. According to reports from the Liverpool based media, Brendan Rodgers and Liverpool's recruitment department didn't see eye to eye when it came to recruitment. Rodgers was eventually fired and Klopp arrived and immediately embraced Edwards and his team and relied on their data driven approach which gave Edwards and his team the power to shape a recruitment plan that catered for Klopp's attacking brand of football which would culminate in the club winning both the league and Champions League. And had we brought in Michael Edwards to United, many of our fans would've been up in arms IMO and would've wrote him off before giving him a chance. It's what a number of Liverpool fans did.
I believe the strength of a club when it comes to the footballing department should be judged by the team and not a individual only. So the recruitment department as a whole should be looked at to form a opinion. For example, Luis Campos has said many times, that it's not just him, but the team working with him that has been the key to his success. Ralf Rangnick is also someone that relies on several people that have helped him achieve success at clubs where the job was to help make the next step in the footballing pyramid.
There's no question we have the experience and diversity in our recruitment department to take advantage of the different markets around the world. We have experienced men working as heads of department who have extensive experience of working in European football and for some of the most decorated coaches/clubs in the world. But what I don't believe we have is a manager/head coach who I believe has the ability or know how, on how best to take advantage of such a recruitment structure which started taking shape in around 2017. The site 'Training ground guru' have guests on their podcasts who work at top clubs around Europe from United, City, Liverpool etc to Roma, and a few German top flight clubs. And according to them, Man Utd's line up of scouts, was one of the most impressive line ups they'd reviewed.
I'm personally hoping we either go for Luis Enrique or Ten Hag. I can't say if they would succeed but if they did succeed, then the football would be fantastic and they'd leave a coaching imprint at the club which would run deep throughout the club IMO.