re: More lively arm talent: Burrow or Brennan?

Does Brennan usually throw harder than Burrow does? Yes

Does Haskins usually throw harder than Burrow does? Yes

Does that mean Brennan and Haskins have stronger arms? No.

It just means that they usually throw harder. And that Burrow throws with touch on almost every throw. And when Burrow needs to... he can fire a bullet.