There's no hiding. These days virtually everything can be measured. You do SEO? Show me the rankings you achieved or some traffic data? You increase sales or leads? Then let's see the landing pages and the conversion data. I once had a guy come in for a senior position and felt that building a bit of a rapport and skirting around the hard questions was going to get him the job. But the fact is, marketing is a numbers game and if you don't have yours ready to back you up, then it's going to be tough to land the role - needless to say the interview won't end well for either of you.