The first three weeks of pre-season with Manchester United have been "so far, so good", but admits he would have liked all of them in place by now.
After returning to training on Monday, June 27th, United flew out to Thailand the next day to play their first game of the season against the Reds.
They traveled to Australia for the second leg of their tour and came from behind to beat the Victory.
The Dutch coach admitted in an exclusive interview with Sky Sports that he was impressed with what he had seen from the group, but that he was still not satisfied with what he had seen.
He said that every session they give maximum, that is also transferred into the game.
I think they have to bring more, but it won't happen in a day. It is a process.
They have to be more fit than they are. The responsibility of the players is to be fit.
We are in the beginning of a process and it takes time. We need the full pre-season, minimum, but I know we won't be ready at the beginning of the season and we will need results.
As Ten Hag has set about remoulding the squad after a third sixth-place finish in six seasons last term, four new players have joined the club so far this summer.
The latter two have joined within the last week and the United boss has outlined what they can bring.
He continued: "He's an experienced player, he's played in Holland, Italy and especially England with Spurs, so a long career and also a lot of caps for the Danes." I think the whole league knows what he can do and how he can help the team.
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There is a different kind of person. He brings aggressiveness, but he can also play football and have a good left foot. The balance of the team needs players who can create and players who can defend.
To be in the highest intensity defending is what we want to do. Three weeks is a long time to travel, so we are working on defending and being proactive.
The club's summer plans are centered around the pursuit of Frenkie de Jong.
United and Barcelona have a broad agreement in place for a £72m deal to bring the 25-year-old to Manchester, but with a conclusion nowhere in sight, Ten Hag admitted that he would have liked the club's business to have been completed already.
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He said that was for certain.
The best situation is when you start pre-season with the squad fully equipped, but most of the time that isn't football, so I have to deal with the fact.
The two friendly outings to date have seen eye-catching displays from existing members of the squad.
A chance to wipe the slate clean is what Ten Hag believes this season will offer.
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He said that every new season is a new beginning. We don't have to look back at the past, we have to look forward.
I am confident that those players will perform and we will get the right results.
It's always a matter of getting better. Younger players and experienced players are included. If players are good enough, I will play them.
The team responds to the high standards and values set by us. We are pleased with that.