[bigbee]

They don't need to, because it's already tied to Google's stock performance! Over 90% of top executives' pay is in equity, so as the stock takes massive hits their pay takes a massive hit as well. Last December the board changed Sundar Pichai's compensation scheme so that most of his compensation is in PSUs (performance stock units) and not regular RSUs (restricted stock units). RSUs vest over time, no matter what. PSUs are only granted based on hitting some performance targets calculated as the stock's performance vs. the market. In other words, the stock not performing well means that the majority of Sundar's pay goes away.

BTW, this is true not just for top executives. The higher your level in big tech companies, the higher the proportion of your total compensation that is stock based. Even mid-senior levels get a majority of their compensation in RSUs.