But staying calm in periods of upheaval may not be enough either. (realdealretirement.com)
The Nook business has undergone a long period of upheaval, to say the least, in the face of a digital media market shifting heavily in favor of e-commerce rival Amazon as well as Google and Apple. (zdnet.com)
Two years later, in 1985, the company was in the middle another period of upheaval. (canadianbusiness.com)