Craig Harrison spoke of his "frustration" after watching Hartlepool United fall to their heaviest National League defeat of the season.
Having enjoyed the best win of the programme on Tuesday against Halifax Town, 4-0, Pools were beaten 3-0 at promotion rivals Ebbsfleet United.
Hopes and confidence were high for the maiden visit to Stonebridge Road, only to be undone by goals from Myles weston, Danny Kedwell and Luke Coulson.
The loss saw Pools return to the bottom half of the table, slipping from 11th to 13th, Ebbsfleet leapfrogging them in the standing
"Frustration is the best way I can describe it," he said. "I don't think we played badly, we just gave poor goals away.
"We've not played anywhere near how we played on Tuesday.
"We need to have a better level of performance.
"Frustration is certainly the word for it. I don't think Scott has had to make a save apart from tipping one onre which led to the corner from which they scored their first goal.
"There have been games Scott has been busier and we've won."
Harrison was frustrated Pools squandered a good opportunity at 1-0, Devante Rodney having a shot saved by Nathan Ashmore early in the second half.
Kedwell headed in Ebbsfleet's second from a cross by home man of the match Sean Shields to double the advantage given to them by Weston - both goals should have been prevented.
Pools were then unlucky not to have been awarded a penalty when Rhys Oates, who constantly troubled the defence with his powrer and pace, appeared to have been brought down in the 72nnd minute after being played in by sub Jack Munns.
Alas, referee Sam Purkiss ruled otherwise and ordered a goal-kick instead.
Ebbsfleet's final goal was well-worked and well-finished, Coulson shooting past Loach from the edge of the box.
"Devante's had a great chance six or seven minutes into the second half and the keeper's saved it," added Harrison. "If that goes in it changes the complexity.
"We should definitely have had a penalty, it was stonewall, that too could have changed the complexity of the match.
"But it's ifs, buts and maybes, we don't work in ifs, buts and maybes, the fact is we were not at the standard we were on Tuesday."