Crewe manager Steve Davis was left to rue individual mistakes following his side's 3-1 defeat at Sheffield United.
Harry Maguire's first-half brace helped give new Blades boss Nigel Clough a dream start at Bramall Lane in his first game at the helm.
The 20-year-old defender twice headed home unmarked in the opening half an hour before Ryan Flynn sealed the three points early in the second half.
Alex substitute Max Clayton grabbed a late consolation goal as his side slipped into the Sky Bet League One relegation zone, below Clough's team on goal difference.
Aside from the goals, Davis felt there was little between the two sides.
"If we're looking at chances, looking at stats - which I don't particularly take much notice of, but I think they were important today - we probably had more efforts, more chances," said Davis.
"Again, we've conceded two ridiculous goals (Maguire's), which I think we did here last time.
"We've got done on two poor bits of marking. The game itself, I didn't think there was much in the game itself in terms of possession or anything like that.
"If you take the goals out of the first half, both teams probably would have been quite happy coming in nil-nil. So I'm disappointed from that aspect, obviously, because at nil-nil we would've really fancied ourselves second half.
"Byron (Moore) had a great chance after half-time to make it 2-1, that would've really stretched them. The confidence would have sapped from them very quickly if we could get that goal and put them under pressure. You could sense it with the crowd - even at 3-1.
"We had another couple of little chances, we hit the crossbar and they were getting a little bit nervy - we'd be the same in that situation because of where we're in the league."