The PHB warrior’s class skills (and the key ability for each skill) are Climb (Str), Craft (Int), Handle Animal (Cha), Intimidate (Cha), Profession (Wis), Ride (Dex), and Swim (Str). They are proficient in the use of all simple and martial weapons and with all types of armor and shields. These archetypes have been designed with the following 'Exchange Rate' in mind. Many traits give an extra ‘Class Skill’ plus a bit of a bonus - so it fair to say that 1 Class Skill ≤ 1 Trait. There is a feat that gives two extra traits. Therefore 1 feat ≥ 2 Class Skills.
These archetypes may be used when building members of your entourage, or as a training class when you recruit a squire using the L3 Squire Feat. You might be able to use these Archetypes (although some archetypes are restricted) to customise any Guards or Soldiery that you might recruit. In this case they continue to progress within their Warrior archetype (they don't all suddenly morph into rangers, barbarians etc)
I like players to run some of the NPCs for me. It gives you another opportunity to RP, and helps me add diversity to the NPCs. Generally these will be Adepts, Experts or Warriors. Use a 10 point build, full HP at first level, 35gp starting money and 1x trait. At least one ability must be greater than 12, with no abilities lower than 8 or more than 14 (after racial adjustments).
If an NPC can raise an ability to 15 or greater, they might be able to retrain or multi-class into a PC class.
The Squire Feat is particularly difficult. The PC takes the feat at L3, but the Squire must be three levels below the PC, so can't be recruited unlit the PC goes up to L4. I house rule that the PC may recruit a L1 warrior when they take the feat at L3, that counts as a L0 Character (I know that doesn't quite fit with the rules, but it makes sense to me). I further rule that the squire may use gained experience to advance to L1 in a PC class, when their advances to L4. (I know that doesn't quite fit with the rules, but it makes sense to me) These Archetypes facilitate that.