What happens when a team's code coverage drops below the mandated minimum? How do different teams' coverage numbers affect their value ranking against other teams? What's going to stop teams from gaming the number with techniques like https://www.pavelslepenkov.info/?p=110 ?
Lots of net-negative consequences can occur when management decides to measure things. Lots of net-positive too, otherwise they wouldn't ever do it, but developer productivity proxies are notoriously hard, I'd question any manager trying to make one with whether they've ever done or read about Deming's red bead experiment (http://maaw.info/DemingsRedbeads.htm)
Lots of net-negative consequences can occur when management decides to measure things. Lots of net-positive too, otherwise they wouldn't ever do it, but developer productivity proxies are notoriously hard, I'd question any manager trying to make one with whether they've ever done or read about Deming's red bead experiment (http://maaw.info/DemingsRedbeads.htm)