Indeed, one wonders how the system is monitored. Is the admin just getting to his desk in the morning and waiting for calls to tell him there's a problem ?
Or is it more like the admin has been screaming for additional capacity for the past year, and now that the whole things is falling under its own weight, somebody is grudgingly accepting to sign the check ?
Because replacing the whole system sounds like they seriously underestimated the workload initially and, now that they have the usage figures, they realize that the existing infrastructure was hopelessly lacking in scaling ability, thus the wholesale replacement.
Whatever the reason, this is just another example of non-existent foresight and total lack of planning.