Mourinho has repeatedly called for more backing in the transfer market if United are to close the record 19-point gap they trailed Manchester City by last season despite finishing second in the table.
Newcastle on the other hand have had their own kind of upheaval with a recent media boycott by the players to force management of the club pay them their due bonuses for the past season. Last season's Championship title winners built up the pressure and were rewarded after 80 minutes.
"It's hard to understand for people that Tottenham didn't sign or sell a player, but sometimes in football you need to behave differently and we're happy with our squad", Pochettino said.
"Of course it's hard to understand for people in football that Tottenham didn't sign or sell players, but sometimes in football you need to behave differently", he said.
"I haven't won the Premier League, I haven't won the Champions League, I haven't won the European Championship so there are more to win", he said.
"The Premier League is always hard and the teams are very strong". "We fought hard and they deserve full credit because the mentality was fantastic".
In a more unexpected story to hear, Arsenal coach Unai Emery has revealed Danny Welbeck has been training as a left-back to provide a solution to the Gunners' problem in that role ahead of the game against Manchester City.
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What they do have, however, is one of the best team spirits in the land.
"If you can't add a player that can improve your squad, the most important thing is to make sure you do not lose your best players and I think that was a great job from the club to keep the best players and the manager".
But the last day of the window belonged to Everton, who made a triple swoop for Chelsea's Kurt Zouma, Bernard, Yerry Mina and Andre Gomes from Barcelona, with Arsenal's Lucas Perez signing for West Ham. He also has brought in new players but would they have really grasp his philosophy? One week you can beat one of your title rivals and the next you can lose to a team fighting against relegation.
Now United fans will hope that from Friday's Premier League opener against Leicester onwards, he has a similar impact - indeed, that he helps them reach for the stars.
"I want to say a nice word, we were unlucky to get the Friday match as we could get the Sunday", he bemoaned at opening the campaign.
Liverpool's addition of new goalkeeper Alisson Becker addressed a significant weak point while Naby Keita and Fabinho have added depth to a midfield which looked weak towards the end of last season, and getting Xherdan Shaqiri for £13million looks an absolute bargain.