Radhi Jaïdi was especially disappointed with the manner in which his young side conceded against Leeds in the Premier League Cup on Monday evening, having led the tie early in the second period.
Saints came from behind to edge ahead, with goals scored by Josh Sims and Marcus Barnes, but lapses in concentration at the back proved costly - with the hosts twice scoring from corners, and adding another nine minutes before the final whistle.
The game was played in front of a bumper crowd at the i2i Stadium in Tadcaster, with over 2,800 onlookers who witnessed an entertaining five-goal encounter, but one that Saints will be frustrated to have lost, as chances to force the scoreline in their favour were squandered.
“I’m really disappointed with the way we conceded goals tonight,” the Under-23s boss began. “We're past that level, in terms of conceding sloppy goals from set-plays.
“It's something we must address and rectify immediately. Either we work to improve that aspect, or change the personnel if we need to.
“I can't neglect the fact we were dominant throughout, and imposed ourselves. We were positive and pressed them high, and scored two excellent goals.
“But the way we conceded is a concern for me. I'm around the boys a lot, they have a huge amount of desire and will to do well in games. They've showed character tonight to come from behind, but we need to cut out individual mistakes.
“Leeds fielded senior boys tonight, which shows they know we have threat. We've sent a message throughout this season with our results that we're a contender in this competition and Premier League 2, we have the belief, but we just need to find a bit more consistency.”