Taylor wasn't available.
But I get what you're saying. It wasn't reach. And I agree, the Rams got the guy they wanted... but it doesn't mean that Ferguson was the only target. Did they prefer Taylor but were just fine with Ferguson if Taylor didn't make it? Were both players in Snead's bucket? Personally I think that was the case. Could have been that if Ferguson also got chosen that Arroyo was their guy... or Fannin... or Helm...
