Moving filters from edge to core

Hi all, This might be quite a stupid question. But my management is looking at moving the filters from the edge to the core, so as to reduce adminstration of apply filters on all our edge routers, and minimizing the possibility of non-synchronized filters at the edge. Does anyone has any advise on this? I believe all the there are many larger ISP in this list that have a better way to manage your filters at the edge. Would appreciate all inputs/comments. Thanks. Regards, Cheeyong