Also if you are the Harbringer of the Companions, G.Master of the Thieves Guild, Listener of the DB or the Arch Mage of the College, surely you can get a couple of "Mage Initiates" or "Dark Brotherhood Assassins" "Thieves" or "Hired Thug" type Mercs for each respective guild.
That would actually add a bit of functionality and realism for Skyrim joinable factions simply because the Companions sit around in Jorrvaskr getting drunk & only coming out to pester you about Radiant Quests, once in Dawnstar the DB starts recruiting but you don't see them at all outside the Sanctuary, the Guild stays in the Flagon all day and even Sapphire leaves the local tavern to guard the Flagon from a dead Mercer Frey. The Mages at the College stay inside practicing or mostly just milling around.
In real life, if you are the head of an organisation/company surely you can get members of your org/company to help you with things outside of work! And Ministers/Congressmen in reality can get bodyguards and such.
In a game like Skyrim, surely they could add something like that to counter these "Home Invasions" I mean, what could a lone giant do against a [censored]load of Mages spamming fireballs at them or Bandits and Skeevers dealing with trained Assassins.
If Beth was to implement that in a new Hearthfire Patch, I'd be quite happy (Despite playing on PC my friends have some problems with this)
-Revontheus