I wish we could have finished the game, so maybe more time? Though we could've played more efficiently... The thing that seemed to hold up the game most on the planet table was waiting for all the players who had their units spread out all over the board to walk to all the places they were needed, assess what was happening there, and then roll the dice they needed to roll. Heck, even when all they needed to do was roll dice, it still took a long time. It is for this reason that I wanted to throw any weight I have behind this:
"Players being spread out across the table. If you are going to spread out too far, then you MUST allow the people on that section to fight your models for you. I lost track of how many times I asked are we done yet and was told now, I'm waiting on player x...."
I'd even say, "If you're going to spread out at ALL beyond your initial starting point + a few feet beyond..." Perhaps an "I am bringing these guys over here to secure this objective and/or kill that unit. When they're done doing that or if you have any brilliant ideas, swing by during our opponents' turn to discuss" would be useful.