Arjun Purewal says Blyth must rediscover their early-season defensive form.
The Croft Park club drew 2-2 with Marine on Saturday, leaving them seventh in the Evo-Stik Premier table.
But they had to fight back from a two-goal deficit to claim a point.
And Purewal insists that while Blyth ought to have won a game they dominated once back on level terms, they must stop presenting opponents with leads from which they have to recover.
“We got caught cold by two early goals that we gifted them but we showed a lot of character to come back and get a point,” he said.
“After that we dominated at times and I think we deserved to win it.
“We need to get back to how we were defensively at the start of the season because it’s individual errors that are costing us.”
That much was clear from 10th-placed Marine’s opener.
On 18 minutes Spartans goalkeeper Michael Misiewicz’s pass to Ryan Cummings was intercepted by Joe Fowler, who stole then slotted in.
And the visitors doubled their lead just after the half-hour mark when Michael Monaghan headed in from an Andrew Fowler free kick.
But four minutes before half-time, captain Robbie Dale’s cross was deflected into his own goal by Marine skipper John Shaw, and Spartans sensed a lifeline.
Suddenly, the momentum was with the home side, as Dale closed the opening 45 by firing narrowly over the bar.
And 10 minutes after the interval, Daniel Maguire rescued his team a point.
Marine goalkeeper Callum Williams produced a stunning save to deny Paul Robinson’s thunderbolt.
But the rebound dropped to Maguire, who made no mistake from point-blank range.
In fact, Maguire – and in-form midfielder Lewis Horner – had chances to win it for Blyth, only to be denied.
But Purewal was content simply to have recovered to claim a point.
And the Spartans defender added: “Dan has been brilliant all season for us and hopefully he can carry on his good form.
“He’s a big player for us and his work rate inspires people.”