This morning, i teamed up with a few fleet friends for a mission, one however was a couple of sectors away and we had finished the space half of the mission before he was able to warp in. for Dramatic effect this would be fine (it was actually kinda cool holding off klingons until reinforcements arrived!) but i can see it being annoying for most things.
I suggest that a when a Team is formed the leader gets a Transwarp beacon. this allows people in the team to warp drecitly to the leader postion.
unless of course theres already a similar function and I've missed it. In which case, I again Apologize.