Actually I don't remember anyone calling any of those guys the heir apparent to Zach Thomas. Certainly not the way Crowder is being considered by the fans.
I'm glad you have that much patience and faith, but for the rest of the fan base that feel compelled to discuss on message boards the merits of adding Manuel Wright through the suppleemental draft via a 3rd round pick, this kind of back and forth interests us. Sometimes I don't necessarily understand when people come onto message boards and knock another guy for voicing his opinion by saying "We'll have to trust so and so's judgement and I will stand by whatever decision he makes."
To me, that's like assiduously reading the gossip magazines and loudly saying "As if we'd be interested in reading about their cheap and tawdry behavior!"
Interesting side note...you say it is given that there has been plenty of talent to be found in the supplemental draft...can you name anyone? I can't. I think the supplemental draft has been one of the most consistent sources of overvaluation since it came into existence. When you evaluate only a few players instead of a multitude of players side by side, especially in a setting like the supplemental draft where your team needs have become infinitely more pronounced while options have become much more scarce than on the eve of the draft, you can easily fall into tunnel vision. Combine that with a consistent feeling among general managers that a pick in next year's draft is worth less than a pick in this year's draft, and you have guys being chosen in the supplemental draft in the 2nd round that would have been 3rd or 4th round picks in the real draft.
There's also a selection problem with the supplemental draft. By and far, these are for the most part guys who screwed up in some way, academically or whatever. I know there are exceptions, but remember this is a draft only available for kids that would have been eligible for the real draft had they declared on time, but ended up deciding to stay at school, and then for various reasons, changed their mind. Immediately that throws their commitment into question. And if the reason they enter the supplemental draft is being declared academically ineligible, that throws their brains and willingness to work in question.