Paul Warne was nominated for the Sky Bet League One Manager of the Month award for November, but Wycombe Wanderers boss Gareth Ainsworth has won the accolade after his side picked up 10 points from four league games.
The Millers had a similar record to that of the Chairboys, with victories coming against Gillingham, Accrington Stanley and MK Dons. Defeat was tasted in the final fixture of November as Portsmouth ran out as 3-2 victors at Fratton Park, but Warne's men put in a spirited performance.
Graham Coughlan of Bristol Rovers and Kenny Jackett of Portsmouth also missed out on the award.