It's a trick question. Over several different "flat patterns" on different lane textures, if bowler B consistently defeats bowler A by even just a few pins, it is because bowler B is executing better.
Now if you're only looking at one particular flat pattern and B defeats A regularly, then you have a valid question. And I would say on that pattern, B is better than A. Bowler A has the same opportunity to adjust his/her style to compete with Bowler B.
I hope you don't think I am just nitpicking your question, but the question is based on an impossible scenario. If they can do all things equal, then bowler B will not defeat bowler A on a regular basis unless A is Chris Barnes.
(I actually hate the ribbing that Barnes gets because I think it is unfair, but I couldn't resist...I'm all about a cheap laugh)
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Brian
MichiganBowling.com
http://www.MichiganBowling.comFamous Last Words of a Pot Bowler--"Ok, but this is my last game!"