Walsall will not be allowed to rest on their laurels after moving off the bottom of the Coca-Cola League One table with their first win of the season.
Manager Richard Money wants his players to build on the foundation provided by this welcome result and beat Oldham Athletic, who have replaced them down below, when the sides clash at the Banks's Stadium on Saturday.
And he revealed that earlier in the week he had turned down the chance to sign a couple of players on loan to boost his injury-hit squad, preferring to stand by the men who had performed well in the home draw with Port Vale.
Money was rewarded for that by the Saddlers demonstrating great team spirit at the hostile New Den, fighting for every ball and coping with waves of pressure from a desperate Mill-wall side.
What a day it was, too, for 19-year-old Troy Deeney who, three minutes after leaving the substitutes' bench, helped himself to the priceless winner.
The former Birmingham building worker scored his first goal for the club in the 87th minute, having replaced another substitute, Ishmel Demontagnac, who appeared to carry the can for Millwall's equaliser which almost robbed the Saddlers of two points.
Deeney's goal came when Darren Wrack found Edrissa Sonko lurking in the right-hand corner of the penalty box, and the Gambian international delivered an inch-perfect low cross for the teenager to score with a firm drive.
That goal was a massive relief for the team and their travelling fans, fearing the worst when Millwall drew level in the 84th minute through defender Andy Frampton showing his forwards how to do it with a close-range volley from Chris Hackett's high cross.
Last season virtually every team switch Money tried seemed to pay off, and while it has taken a little longer this term, he showed his golden touch with two substitutions that led to both Walsall goals.
Millwall, dominating the first half, were denied by five saves from the excellent Clayton Ince, and it looked ominous when big defender Ian Roper blocked a fierce shot with his face and was left too dizzy to continue after lengthy treatment.
On came Sonko, allowing Anthony Gerrard to switch to his usual central defensive role which he carried out diligently.
And Sonko immediately provided the cross that created panic in the home defence, leaving Wrack to head back across the face of goal where young Daniel Fox scored his second goal of the season with a spectacular overhead kick in the 42nd minute.
That led to Millwall changes at the start of the second half and even more pressure, but with Danny Sonner having his best game for the club in midfield the Saddlers looked capable of keeping a clean sheet for the second successive match.
Gerrard and Scott Dann won most of the aerial battles until Hackett's cross set up the equaliser which prompted Money to remove one of his substitutes, Demontagnac, and replace him with promising teenager Deeney. The rest is history.