I agree that Erik Ten Hag is now better than Xavi Hernandez, he is also a coach who has more experience compared to the Barcelona coach now. We will see how they prove on the field, because this is their first meeting because as far as I can remember these two people have never met before as coaches. Manchester United vs Barcelona is one of the big matches that will be played early.
On what basis do you say Ten Hag is better than Xavi? Ten Hag is not the only one that did very well in his former team, Xavi's team before Barcelona did really well too. He won every available trophy during his time there except the club world cup if I'm not mistaken. And currently, to me I think Xavi's Barcelona is doing better than Ten Hag's Manchester United. We can see how both teams have improved under their current Managers so you cant say Ten Hag is a better coach than Xavi.
Except you do not watch Barcelona matches. Too many injuries and poor officiating are major reasons for their early exit from the champions league.
I also do not think that Ten Hag is better than Xavi,Ten Hag is an average coach for me and the fact that he excelled at his former team does not mean anything as he was not in one of the best leagues like he is now in Premier League,the fact that he is not excelling here against strong teams but against only weaker ones says a lot.On the other hand Xavi is clearly shining in the Barcelona management as they are comfortably leading the La Liga in Spain and also won against Real Madrid in the Super Cup there.