As covered in the Bus Journal back in Jan... Source Below:
Schlifske referred to his announcement in September 2016 that NM was eliminating 100 jobs by the end of 2016 and planned to cut hundreds more in 2017. The “expense initiative” is necessary due to low interest rates that jeopardize the company’s position as a low-cost producer of life insurance, the company’s chief investment officer previously told the Business Journal.
Source: https://www.bizjournals.com/milwaukee/news/2017/01/26/northwestern-mutual-to-inform-employees-of-more.html