When employees lack motivation it is worth taking the time to analyse the reasons from their perspective. Research on motivation indicates that the key is for managers to first accurately identify the reason for an employee’s lack of motivation and then apply a targeted strategy.
Motivation — the willingness to get the job done by starting rather than procrastinating, persisting in the face of distractions, and investing enough mental effort to succeed — accounts for 40% of the success of team projects. Yet managers are often at a loss as to how to effectively motivate uninspired employees.
https://hbr.org/2019/03/4-reasons-good-employees-lose-their-motivation