AS this game entered its final quarter, WGC boss Adam Fisher rang the changes to great effect, to keep his side's 100 per cent League record in tact.
Fisher, clearly wishing to rest some of his regulars for the following Saturday's FA Cup-tie at Thurrock, introduced midfielder combatant Daryl Smith among his three late substitutions and Smith scored one and made one in the final 12 minutes of this game.
With just 11 minutes left, Smith achieved the breakthrough that 79 attritional minutes of a hard fought clash with league newcomers Edgware Town, had failed to bring.
Fellow sub Sean Brettell launched an accurate long free-kick into the home goalmouth and Smith got highest among a bunch of players on the back post, to back head in the goal that looked to be the winner.
That was until a minute from the end, when Smith won a vital tackle on home assistant-boss and ex-pro Daren Bloor and slipped Jason Caswell through and with his first real opening of the game, last season's top scorer secured the points.
"It's the mark of a good side that even when you don't play your best, you still manage to grind out a winning result. That's what we did tonight,'' said boss Fisher after his side extended their unbeaten run to 10 games at the start of this season.
Newcomers Edgware, playing this game at Barnet's former Underhill ground, while their own new home at nearby Kingsbury is made ready, clearly tried, throughout the 90 minutes, to unsettle the Citizens' play in what became something of a bruising encounter, particularly in the second-half.
In the first-half, WGC's best chance saw the always dangerous Joel Norris switch the ball quickly to Craig Arnott, whose first-time effort was turned onto the post by Edgware keeper Laney.
A deflected effort from Bloor and a first-time volley from home top scorer Quatromini were the closest Edgware came.
On the stroke of the interval, Yasin Boodhoo, playing impressively in central defence met a Juan Cifunetes free-kick, but headed a great chance wide from close in.
There were fewer openings as the game deteriorated in the opening half-hour of the second-half until Smith broke the deadlock and then in the closing minutes, Norris hit a trio of fearsome efforts just over the bar or past a post before strike partner Caswell made the victory safe a minute from the end.
WGC: Croft, Perrin, Boodhoo, Kenna, Taylor (Lovell 75), James (Smith 70),Cifuentes, Stellon, Arnott (Brettell 61), Norris, Caswell.