The layoffs are ONLY about hitting a number and nothing more - not this realignment of resources BS. I was hit in late 2014 as part of an 8% company wide LR, I was a top ranked Sr Manager. Prior to that I laid off staff every year to hit the number of the day.
In some cases I laid off recently hired 4.0 GPA new hires. I am a different person since leaving that dog eat dog and highly demographically skewed company. Internally it was often like the game of survivor / hunger games. There were always people in SJ headquarters trying to take me and my team out or put us in a bad light so they could take over our work.
Many Directors and VP's lied to my face, often. I still talk to some former coworkers who are still there and say it is even worse than when i was there. I do not envy them one bit. My kids live in the bay area and my daughter once talked about applying for a job at Cisco. I strongly recommended against it.