So I am looking for a new job, and since I didn't have any interview clothes, went out and bought some smart black cigarette leg, heavy ish wool blend trousers from Reiss, some black leather brogues, and a navy blue silky shirt from m and s. I think it looks good together. Question is, do I need a black blazer ( expensive?). I was planning on wearing a navy/ black wool blend double breasted Barbour coat as it's autumn and a blazer would not keep me warm if I need to walk any distance. The jobs in going for are all admin/ coordinator/ project management type roles in a large university, so it's not massively corporate, but obviously professional. I want to look smart but also show some personality i.e not look like I'm dressed as a waitress ( I have worked as a waitress before and that is not the look I'm going for). So do you think it sounds okay, and would it be better to suck it up and buy the matching blazer?