There’s a critical distinction to be made between having access to player projections of some sort versus having a systematic decision-making process. Andrew Friedman, and his former mates with the Rays, are by far the best exponents of the systematic decision-making approach in baseball today.
So what exactly is that distinction?
Many teams have developed their own player projection systems. Many have done some form of piggy-backing off of public systems. Naturally, these systems all range in quality quite broadly—so that’s one potential difference.