I have a team member who is currently serving notice period. This person was one of the best working person in our company, due to which the management was not willing to let go. But, the company couldn't counter the offer, his resignation was accepted.
Now, this person is no longer working like his prime. Although he is not neglecting anything, but when earlier, he used to seriously attend calls, deal with clients, overtime, internal meetings on short notice . Now he does all these casually. Also, he freely says no, when he cannot attend a meeting. He completes his work, but now, he is working like he is not interested at all.
That should not be my problem, except that my manager is pressuring me to make this colleague work as much as he used to. Or, I need to attend calls and meetings on his behalf.
My job is very different from him. I do not know every role and responsibility of his, as although the project is same, the work is different for each people. How can I let the manager know that our responsibilities are different and that taking his position while working in mine , will increase my workload and delay my work as well.