Proven tutoring models of all types should be a standard offering for every school. More research is always needed to find more effective and cost-effective strategies. But there is no reason whatsoever not to use what we have now.
As I learned last week, finding a personal assistant is no easy task. But it can be easier if you apply the rapid-fire character assessment tricks we online daters know already. With enough time, you'll find the perfect match.
Pardon me for being so bold, but... What's so bad about TAs? In my eyes, comparing a professor and a TA isn't necessarily about one being better than the other. Rather, I think they offer two very different teaching styles.