From playing Shadowrun for a bit, I get the impression in a typical shadowrun group, you just need a decker or technomancer. Sure, the characters probably have contacts that can get them all the information that is needed, but most actual runs require someone to tamper with security, data and devices. At least, that is how I as a GM saw it.
What I am looking for are tips on what to do as a GM for a group without a hacker, regarding the possible runs; and tips in handling NPC helpers for the group, without needing an actual GMPC to accompany the players on a run.