Thank you so much for your ideas and comments - I know exactly what your getting at. I have to have it finished for tonight so 'm cracking on with the second half.
Once I've done that it'll be easier to pull together and maybe comment a little more on your points.
P.S - this isn't uni, it's just about the most basic level of study, but it set me thinking - especially regarding the value of being non-directive/directive because that's relevent to my work.