[JoshuaEN]

"Not being rewarded with money seems to be the common theme here, but financial incentives are tricky to get correct"

Giving pay raises which exceed inflation for someone who meets expectations (in anonymous peer reviews) is tricky?

Ensuring expectation meeting employees pay stays in line with market rates--when the company knows the market rate because they are hiring new employees--is tricky?

Even if one argues it is not possible to accurately measure performance (or to get honest reviews from peers), punishing everyone because some employees may be underperforming is clearly not the solution (it will only serve to demotivate or drive away previously motivated and happy employees).

And to be clear, reasonable pay raises is not a solution to all of the problems the article is talking about, but it's a simple place to start.