[pgjocki]

I went to Statcast on the MLB to look at 2018 catchers and here is a list of catchers batting over .250 with at least 350 at bats:

Posey, 398 AB and a .284 average, 5 HR
Realmuto, 393 AB an a .282 average, 16 HR (27 years old)
Contreras, 394 AB and a .264 average, 9 HR
Molina, 377 AB and a .273 average, 16 HR (36 years old)

I called out the ages of Molina and Realmuto to point out just how much a stud Molina is that he is doing this after 15k innings behind the plate.

But it does show that when I filter for OF's with 350 AB's I get 63 guys with an average greater than .250. So, you should expect (with this sample size only) a far greater number of OF's than C's batting for high average and high to moderate power.