The phrase "haphazard network" is grammatically correct and can be used in written English.
Example: The company's haphazard network of sales representatives made it difficult to track their progress and productivity.
Residents of this community also report that there are many days at a time, especially during the summer season, when there is no water flow through their haphazard water network due to water pressure issues, or loss of the motors that are taken away by the authorities every 5 6 months and must be repurchased by the water sellers.
Among the many things that surprised Michael Jordan when he arrived at troubled tech giant EDS last year was a deep and puzzling irony: EDS invented the business of outsourcing, overhauling other firms' computer systems and running them far more efficiently, yet its own internal network was a haphazard and disjointed mess.
I argue that the haphazard discovery of people's networks is what made Twitter great.
Long Islanders' mixed passions about sidewalks only partly explain why the Island's network of sidewalks is so haphazard.
That would leave hundreds of thousands to continue relying on a scattershot network of improvised and often haphazard health care remedies.
The haphazard path of evolution created multiple, interconnected networks for everything from processing visual data to archiving memories.
They are counting on a transportation network with no subway system and a haphazard fleet of buses and taxis.
Khan often relied on old friends and university classmates as he constructed his supply network, and from the beginning there was a haphazard, almost accidental quality about his deals.
For years, a hodgepodge network of seed banks has been amassing seed and shoot collections in a haphazard manner.
