They probably need to beat us twice just to close the gap. There are lots of examples of teams doing the double but finishing below that team (Derby last season?).
Our fixtures from here until the Jan 4th is a gauntlet, particularly our away fixtures where we play teams that are very strong at home.
WBA (H) - 15th in away form
Boro (A) - 4th in home form
(unbeaten)
Charlton (H) - 13th in away form
Ipswich (A) - 6th in home form
PNE (A) - 3rd in home form
Bristol City (H) - 3rd in away form
Southampton (A) - 16th in home form
Swansea (H) - 17th in away form
Ipswich (H) - 16th in away form
Charlton (A) - 8th in home form
Birmingham (A) - 7th in home form
We're top for both categories so we should be going into each fixture confident of picking up a point at least, but a quick look at the table shows that our home games are 'easier' and we need to be winning 3 of them at least.