The Brakes won 1-0 at in-form Boston United before Saturday’s victory over Blyth Spartans by the same scoreline.
The two impressive wins have moved the Warwickshire club up to 15th and four points clear of the relegation zone.
Holleran knows there is plenty of work left to do but is pleased with the amount of progress his side are showing.
“We’ve probably played the two form teams in the League and kept clean sheets against both of them,” the boss told the club’s YouTube channel.
“Back-to-back wins in this League are hard to get and it’s fantastic when you get them. It’s a platform for us - I couldn’t be happier.
“We had to put a few square pegs in rounds holes but the players have given absolutely everything and I can’t fault them.
“We had the game here the other week against Darlington where we were a bit naive. We’ve managed the game better and that’s really pleasing."
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