The Red Devils endured a difficult 2018-19 Premier League season as Manchester United finished in sixth place and a staggering 32 points behind champions Manchester City.
Ole Gunnar Solskjaer took over the reins from Jose Mourinho in December last year before the Norwegian head coach was confirmed as their permanent manager at the end of March.
The Red Devils boss has signed Swansea City midfielder Daniel James and Crystal Palace full-back Aaron Wan-Bissaka in deals worth nearly £70m so far this summer.
Solsksjaer appears to be looking to create a culture around the young British members in his squad judging by his recruits in the summer transfer window so far.
Manchester United have also so far managed to keep key stars such as David De Gea and Paul Pogba to strike a blend of experience and youth within the Red Devils squad.
And Shaw warned Liverpool FC and Manchester City to expect a challenge from Manchester United this season.
“It was really tough for all of us to take and you couldn’t really enjoy your holidays,” Shaw told The Telegraph.
“You see the Champions League final and the Europa League final and they’re all English teams. It makes you feel even worse, and especially the way the finals went. None of us want that to happen again.
“I think that’s why we’ve all come back again with a different mindset. We had that break to clear our minds but now we’re all focused on getting United back to where they belong and not let the likes of the teams we’ve seen in the finals have it that easy.”
The Red Devils have only managed to finish in the Premier League’s top four twice in the past six seasons.
Manchester United have failed to win a trophy in the last two campaigns.
MORE: Man United latest news
MORE: Arsenal latest news
MORE: Chelsea latest news
MORE: Liverpool latest news