Legions operating together in Britain?

[M. Demetrius]

Even though they had scouts and informers in various towns, the spy network was nothing like what we have today. There is no way, really, that the 2nd could know just what the enemies to its north were about to do. Give them a few Predator drones, and they might have been right on Boudicca's flank, popping up to the battle at exactly the right moment. Many in the 9th probably would have applauded loudly.

I remember reading somewhere that the 2nd was concerned about leaving his area undefended for a week or more, but I can't swear that is historically accurate.