Northampton manager Ian Sampson is concerned about his players` `mental strength` after their collapse against Hereford on Saturday.
The Cobblers were 3-0 up at half-time thanks to a Leon McKenzie hat-trick but somehow lost 4-3 to slump to within a point of the foot of the Football League.
Sampson said: "The worry is we folded easily.
"I'm worried about the mental strength of the players because it has happened quite often this season.
"When we concede one we tend to concede two or three and it's something we need to look at."