The U's have now won four of their five away games and claimed the best of the lot on Tuesday night - watch match highlights here.
Corey Whitely gave the hosts the lead but Sutton legend Craig Dundas scored a crucial goal before half-time and then Kenny Davis headed in a late winner.
The result was enough to lift Sutton to the top again, and further dispel their 3G pitch advantage, Doswell said: "I think the players have to decided take the 3G thing very seriously and prove we're just as good on grass! Joking apart, I thought it was a magnificent team performance, but we weren't happy at half-time. We got bullied a bit in the first 30 minutes.
"The goal changed our half-time team-talk to a certain extent but we weren't passing the ball enough. It was too long, uninspiring and I thought Dagenham were the better side in the first-half.
"If you see the substitutions we made and that Kenny was kept being asked to make one more run, he showed what a great asset he is tonight because that was a great header.
"The plan was to go big and strong for the first hour. We knew they'd had a long trip to Hartlepool and that does have an effect. We felt with half an hour to go our pace could hurt them and we went brave."
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