She meant that the changes that the employer provided were efficient to remedy the problems that happened, but they were not showing good enough results to make everyone satisfied and happy.
Explanation:
The changes were efficient to achieve the objectives for which they were created, but their actions did not promote satisfactory results, where everyone involved had their wishes met and were not harmed. This reinforces the idea that not everything that is right is ideal for society or a group within it, as the right elements can create unsatisfactory and demotivating situations.
The narrator here uses "proposed" because he has to take some time to think it over before deciding to take that rest. It shows that he is not making snap decisions, he is suggesting things to himself and then taking the time to consider them before acting.