Would reviewing the effectiveness of recruitment include an evaluation of how successful advertising was, what was advertised, how and where. What the level of interest may of been, how many submitted details or enquired maybe and then also how many declined ?
Business Link have excellent resources on lots of these areas -
Recruitment and interviewing
Working culture could involve the flexibility and readiness for change - or to counter.. being prepared with reasons why change would be inappropriate or not in everyones current best interests .. within your own and others practice
If you apply the last K&U to a known organisation, their aims, goals & possibly achievements might be a good reflection of what the culture and core values are .. Structures are webs in disguise
lol
A diagram/flow chart of who has which title & responsibilities would be useful to base research & possible conclusions on ..
Hth, & let us know what your tutor suggests ..