Lee Bradbury admitted to being a worried man after watching the Hawks slump to a 2-1 Skrill South defeat against Hayes & Yeading at Westleigh Park.
He accused his side of conceding poor goals and failing to take their opportunities at the other end as they crashed to a disappointing defeat.
The Hawks have now been beaten twice on home turf in the early stages of the new season.
And boss Bradbury knows it is not good enough if his team are to make an impact.
After gifting the visitors two goals in the opening 14 minutes, the home side then spent a frustrating afternoon unable to break down a packed defence.
They missed the creative flair of injured winger Christian Nanetti – and eventually ran out of ideas.
Nic Ciardini managed to pull a goal back in the final minute from the penalty spot but by then it was far too little, too late.
Bradbury said: ‘We have killed ourselves by giving them both their goals.
‘They only had two or three chances all game.
‘After that we have created enough chances to win two games but failed to take them. It is worrying.
‘That has been a pattern of our play recently and something we have to rid ourselves of.
‘We must get back to some kind of consistency in our defending and improve our decision making in the final third.’
The Hawks started the stronger of the two teams but fell behind from the spot after seven minutes.
Defender Ryan Woodford slid across to prevent Kamaron English crossing from the byline but unfortunately had his arms raised.
When the ball struck one of his outstretched limbs, referee Paul Harris pointed to the spot.
Jack Mills then drilled his penalty past Ross Fitzsimons in the home goal to give the visitors an undeserved lead.
And further misery for Woodford followed.
Seven minutes later his poor back-pass to Fitzsimons rebounded off the keeper’s leg before it was crossed to the far post where English hooked the ball home.
From then on the Hawks dominated possession – with Hayes happy to sit back and counter-attack.
The hosts could have been level before the break – but Sahr Kabba and Ciardini both squandered good chances.
And the pattern continued after the break, with the Hawks pouring forward in search of a lifeline.
When Scott Jones came off the bench late on, he also missed two good chances.
‘In the last 12 games here last season, we were very strong,’ added Bradbury.
‘And that’s why we got ourselves into play-off contention.
‘We have lost two at home already this season and that is something that worries me.
‘If we want to achieve anything this season we have to be solid at home and nick points away from home.
‘At the moment we are not doing that.
‘We struggled to break them down but it is always tough when the opposition pack nine or 10 players behind the ball.’
Hawks: Fitzsimons, Strugnell, Blanchett (Newton, 45mins), Monteiro, Woodford (Smith, 45mins), Harris E, Harris A, Kewley-Graham, Ciardini, Kabba (Jones, 72mins), Ryan. Subs not used: Hutchinson, Ramsey. Att: 490.