The powah!

The idea of the deck is to make sure that the runner is having a hard time breaking through anything. With IT department helping by creating a sort of barrier between them and anything they wish to run on, and with Corporate trouble shooter hanging around can making rototurret just a nightmare for the runner. Or if really necessary, allows you to make archer hit again or make that ice wall really annoying to get through.

Now for that economy, being GRNDL you're already ahead of the money game, and being able to go ICE, ICE, Hedgefund (or you know restructure) allows you to continue to stay ahead, and with some shell corporation or melange hanging around you can continue to remain ahead which you really want to so that corporate trouble shooter will make hell for the runner.