This rates an article?
"You must be able to cope with the peaks in demand likely to come your way."
I cope quite nicely, thank you.
"If your in-house resources reach a limit you can go outside, to the public cloud, for relief."
No. I can not. I value my corporate privacy, and plan accordingly to keep it all in house.
"This is important because your current assumptions about network bandwidth, server and storage use and growth may be quite inadequate."
I have now fired you for incompetence. End of discussion. Please leave the premises, you'll get your final paycheck in the mail shortly. HAND.