Everyone scratched their head when it was announced, and few have been surprised that it seemingly failed. The question still remained, however; what was MM thinking when he did it? We finally might have an answer from the GBPG:

The move was intended to give Van Pelt more responsibility and exposure after the Packers blocked him from interviewing for St. Louis’ offensive coordinator position
A move to placate Van Pelt? Did he demand something of expanded responsibility? Did he shoot himself in the foot by failing? Did his name come up this year at all for any vacancies?