Worst case scenario is that you get proficient at analysis and your market dynamics...best case, you find some deals.    100% of my portfolio is comprised of property types that I hear comments daily on BP that others don't consider them ever to be profitable.  

I read your post exactly as it was written, and I am proficient at reading English.If you are joking then you should give some more clear indication of such, otherwise we are left to try to "read between the lines" - and that is where mistakes are sure to occur.

The best advice for agents is to become extremely proficient at one area... it may be working with investors (many agents say they are experts at it yet they don't own a single property), waterfront properties, 1st time home homebuyers.. etc.

They should be most proficient on the code applicable to your area and also be familiar with older codes.  

I find pretty good rehab deals all the time but I am not proficient at the rehab.  

I believe in "defensive driving " - in other words when on the road assume the other driver may not be proficient, may shoot the light, may overtake where they shouldn't, etc.- Not all drivers are bad - in fact most are not, but when you do come across one, you won't be surprised, and hopefully will brake in time.  

Ideally we would like to be as proficient as Bigger Pockets is with their podcast shows. 

You'll have to be proficient in conducting your own due diligence to see which are worth pursuing.

Also, I have practiced Spanish on the side and have gotten quite proficient in it as well.

Likewise, if there is every anything I can help with, please do not hesitate to reach out, especially with things like financial models and communications materials; as you can imagine, my day job has made me fairly proficient at those!