1
Explanation
Managers may not permit each employee to use flexible timing because this would lead to inconsistency in the timings of work completion, ultimately leading to ineffectiveness and inefficiency. It would become difficult for the managers to collaborate on the tasks of all the employees because of such inconsistent performance.

The manager can implement the flexible work schedule on a rotational basis to resolve this problem. In this, the manager may allow a flexible work schedule at the time of workload and may ask the employees to work at fixed timings at the time of high workload to ease organization and minimize confusion.

Flexible timing in some of the cases can lead to the following:

The completion of the task can be delayed as different employees would work at different timings. The consistency of the work may be lost as the shift timing may vary for different employees.
It would become difficult for the manager to manage the work and time of each employee effectively. People working at different timing may report at different timings as per the respective shift timings. So, it may be a problem to control each of the individual's work and manage it effectively.
Sample Response
A flexible work schedule as per each employee's convenience would lead to an ineffective and inconsistent workforce. However, the rotational method can be incorporated to save the losses.

The problems may result in the following cases:

Delayed work completion
Difficulty for the manager to manage the work and time of each employee

2
Explanation
The flexible work arrangement should be established under the proper written guidelines. This is because this will be favorable for all the employees working in the organization.

Flexible working can be made successful by overcoming the problems in the following ways:

To reduce the issues relating to the delay in work, the manager can set benchmarks and deadlines and make sure that the employees follow the same. This would lead to the timely completion of tasks.
Rotational shifts can be used to make sure that there exists an adequate number of employees available during the important working hours of the organization.
Sample Response
The problems involved can be overcome in the following ways:

Proper targets and deadlines can be provided to ensure that the work is completed on time.
Rotational shifts may be employed for maintaining the availability of employees as and when required.