Leyton Orient boss Geraint Williams was left fuming after their 2-1 defeat at home to MK Dons.
He said: "We don't score enough and are conceding too many."
Ian Hendon warned his Barnet side there could be sales in January after a 2-1 home defeat against Crewe. He said: "If they keep doing it they will be out."
Dagenham maintained their promotion push with a 3-1 win at home to Bury.