I am coordinating a subproject with two external partners in an IT integration project. My PM is constantly asking for accurate numbers and deadlines for the partners work
He says, the project needs to be done till december, although I know the following march would be very optimistic. The partners are not willing to sign any contract, they cannot fullfill. So I am currently running between my PM and the partners: "they can't give you numbers or deadlines in a contract for something they don't yet know or they don't believe is possible" - "they are external and they will have to" - ..... I can't chosse different partners and of course I can't choose another PM.
I prefer more of a "go ahead" style and would rather start working. I know that I have to adapt my communication style to the one of the PM. I this case this would mean, that I would also have to change my general work style and I have a bad feeling about this.
Any ideas how to handle this situation?