Browns get a huge win over the Steelers today and make it in at 11-5.
Not sure why you think it was any kind of a huge win much less that the Browns will beat Pittsburgh next Sunday.
The Browns only beat the Steelers by two points and the Steelers were playing half their team with back ups including a back up QB who is a rookie who hasn't really played at all in a year, and had he made one completion near the end of the game, it would have gone into OT.
The last time the Browns made it to the playoffs was 2002 or 2004 and guess who beat them then? Pittsburgh.
Earlier in the season these two teams played when the Steelers were playing all their regulars and the Browns were beaten 38 to 7.