Maybe my brain is going (long day), but that makes no sense.
First paragraph: you send them a time ("me proposing a vague timeframe"), they say yes or no.
Second paragraph: you send them a time ("I just lead and send them a time"), they say yes or no.
I can see how picking a specific time could work better, as then they're more likely to bend to your time than if you're vague. Being vague implies you have other open times too, so they're freer to say no while still getting the meeting. But how is the first about letting them choose a time-frame?
If I am vague, they seem to come back with the same vagueness. Me picking a time from the start puts them more on the spot and their no is normally followed with a concrete suggestion of their own. (I never seem to get that when giving a timeframe or options)
First paragraph: you send them a time ("me proposing a vague timeframe"), they say yes or no.
Second paragraph: you send them a time ("I just lead and send them a time"), they say yes or no.
I can see how picking a specific time could work better, as then they're more likely to bend to your time than if you're vague. Being vague implies you have other open times too, so they're freer to say no while still getting the meeting. But how is the first about letting them choose a time-frame?