Lets look at the Terminology.
In S.D.Z.A. there is no Intelligence Stat, because at the end of the day Miniatures in your force are as smart as you are - so why deny it ;) BUT (there's always a "big but" isn't there) certain Traits can cause Miniatures to behave differently depending on the Trait and the Circumstances.
The Stats WERE - Vigour, Physique, Alacrity, & Backbone.
Alacrity determines both the general dexterity and the agility of the Miniature. Dexterous people are rarely clumsy, and the same is true of those who are Agile - again, Traits are important here as they further define the strengths and limitations of a Miniature in the game. This is used for all physical actions that do not involve brute strength, shooting, jumping, hitting someone in close combat etc- HOWEVER, some play-testers just can't get to grips with it, others just keep using the Word Agility - so its been replaced replaced with Agility.
Vigour not only determines what a Miniature can do during a turn, as it is also a Miniatures Action Points – these points are spent whenever a Miniature is Activated to perform Actions. In addition they are also the number of points of damage a Miniature can take before dying - and as a Miniature becomes Injured it’s Vigour score goes down, so it also becomes less capable of performing Tasks during a game - some play-testers seem to confuse Vigour with Physique in their minds - probably because Vigour is often a measure of an individuals health and well being - so, this has been replaced with Vitality, as Vitality as a term covers both the mental and the physical - which is more what the Stat was supposed to represent.
Physique and Backbone stay the same.