1. A method, comprising: in a hardware advertisement management system configured to communicate with a plurality of advertiser order generation systems and electronically receive, via a communication network, deals comprising orders from advertisers: generating schedule spot counts for allocations of spots based on a selling title and week combination structure for a pending deal for an advertiser; generating a plurality of simulated spot schedules based at least on the schedule spot counts for the advertiser for a quarter; generating estimates of unduplicated audience for new spot schedules based on corresponding attributes of each of the plurality of simulated spot schedules; establishing parameters for the pending deal for the advertiser; determining constraints to be imposed on the pending deal based on a reduction in a target cost per thousand (CPM) goal, a cap on demographics CPM, and the established parameters for the pending deal; acquiring audience rating estimates concurrently with the establishing of the parameters and the determining of the constraints, wherein the acquiring of the audience rating estimates is based on the reduction in the target CPM goal and the cap on the demographics CPM for a plurality of networks; generating a distribution of audience spots for the pending deal for the advertiser across at least one of a plurality of selling titles, a plurality of weeks, or the plurality of networks based on at least one of the audience rating estimates, reach estimates, or a budget for the pending deal; generating a proposal based on the estimates of unduplicated audience and the distribution; and scheduling the audience spots across one or more of the plurality of networks for selling title and weeks combinations based on the generated proposal.