Having a clear cut #1, and then some decent depth is a full stable IMO. Having a few equal caliber guys, and some versatile guys who can rack up yards and points both on the ground and through the air... I'd say that's a full stable. Whether you have to get really versatile and work down the depth chart a little, or you have a star at the top, it doesn't matter. They've all looked better than this year's group looks on paper... so far.
Right now we have a "full stable" of inexperience and average to below average production, so I'm wondering if you're overvaluing this term and what it really means. 4 dudes with potential and flaws doesn't yet come out to equal what we already know in hindsight about other groups.
Yes, I get what you're saying, that there are a number of guys we could turn to. But we don't know at all what we can expect from them yet, and definitely not someone who stands out above the rest to demand a heavier share.