Obviously not if they don't return calls, make sure stuff gets done, etc.
Let me ask you... who do I call to service my sprinkler system, service my vac system, install new cabinets, do electrical work, yard work, patch a driveway, service a hot tub, re-shingle a roof, finish a garage floor, etc? No general contractor that I know. If you do please post their number.
Imagine if you could have just one point of contact for all that, and you knew the prices were competitive.
I am not trying to sell anyone on the idea... it was just a thought. Maybe I am way off.