Azhar Ali acknowledged Pakistan had room for improvement with bat and ball after Friday's 84-run defeat to England saw them suffer a 3-1 one-day international series defeat.
Jos Buttler's extraordinary innings of 116 not out from 52 balls helped England to 355-5 after Jason Roy's maiden ODI hundred and a run-a-ball 71 from Joe Root had set a strong platform in Dubai.
Four of Pakistan's top six made encouraging starts in reply as the designated hosts performed admirably to keep up with the required rate.
However, Azhar (44), Mohammad Hafeez (37), Babar Azam (51) and Shoaib Malik (52) all failed to kick on and Pakistan were dismissed for 271 in the 41st over.
"When you're chasing 350 plus somebody has to score a big hundred or two hundreds even," said Azhar at the post-match presentation.
"Everyone had a very good start, but just that big innings was missing."
Reflecting on his side's struggles with the ball as Buttler accelerated rapidly in the closing overs, Azhar added: "Sometimes, a player like him, when he gets going, it gets tough for the bowlers. But in the last few overs, we didn't bowl that well.
"Credit must go to Jos Buttler, he played exceptionally well, but I think we could have done a lot better in the last few overs.
"It's a big loss. Congratulations to the English side, but we played some bad cricket on a few occasions and that's what cost us the series."