PROJ 410 Week 3 DQ 2 RFP Evaluations (Devry)

It is very common to find buyers that fail to identify the RFP evaluation criteria during the project procurement planning process, and in fact do not define the evaluation criteria until after proposals have been received and the evaluation process is set to begin.  What do you think is the risk of waiting until bids have been received to establish the evaluation criteria to be used to select a preferred contractor?