Compared to other SF prospects, Bender isn't that impressive, except that his height and length means he will likely be able to play at the 4 and possibly the 5 once he adds muscle.
Look around the league. How many seven footers can hit threes with frequency and efficiency? How many seven footers can attack a close-out and also defend 3-5?
Look to Europe, and the answer is "a lot", since that is how they develop bigs here.
I mean, what you're saying is completely right, but the question "will he ever get there" remains. You talk about a seven footer who can hit threes with frequency and could one day be able to guard 4s and 5s, and I'll show you Andrea Bargnani. Or I'll show you Pau Gasol. Which one will Bender become?
I would love to have a young Pau Gasol on this team, but the history of the draft suggests that he's more likely to become the former. Your line of reasoning is precisely what enabled all these highly touted euro busts. "Oh, he just needs to fill out", "If he can translate his game to the NBA, watch out", "Imagine the possibilities if he ever gets there". I've heard this stuff way too often to get excited about Dragan Bender. It's just not enough. You need a bit more, or "different", evidence to get people intrigued. And that's precisely where people have their doubts.
Now, I'm not an expert on european basketball, and I'm not a professional scout, but what I see when I look at the footage available doesn't exactly inspire confidence that he will turn into a 4, much less a 5, in the NBA. Which is why I said he strikes me as a very tall 3, not a finesse 5 like Porzingis. Gotta trust Danny, eh?
So, my challenge for the Team Trade the Pick folks is, for whom? You can kinda see it in the biased way I phrased the poll option -- I think it's really easy to say, "Oh I don't like the draft, none of these guys can help us for the next few years, just trade for somebody who's already good."
It's much harder to figure out a realistic explanation for what that would look like. Because you know, teams with players that are already good tend to feel the same way about the draft. Why trade this really good player -- Butler, Cousins, George, Etc -- for a draft pick or three?
Most of the time, established guys who get traded are either on the back end of their prime, or only have a single season left on their contract. Tough to justify trading a top 3 selection for a player who fits in either category.
C'mon man, you know that's the wrong way to look at it. None of us is in the loop, we don't know who's available and at what price, and it always takes two to tango. It's impossible to answer this question with any kind of confidence or credibility. Doesn't mean I can't hope for it and consider it a best-case scenario.
I believe I can answer your follow-up question, though. Teams trade really good players all the time. It may have been a bit quiet on that front for the last two years, mainly because of the new CBA and increasing cap space, which allowed teams to "sit it out" if they had a disgruntled star on their team, but that will most likely change pretty soon, once teams overpay for middle of the road players again...and they will undoubtedly do exactly that, as they have always done whenever they had some spare cash lying around and a star, or fanbase, to please.
Chris Paul got traded. Carmelo Anthony. Deron Williams (was pretty good back then). KG. Ray Allen. Pau Gasol. Up until two years ago, trades involving stars happened basically every year. If you can get a player of similar quality, I don't see how it's "tough to justify" trading #3 in what is widely considered to be a 2-player draft.
Trades on that scale involve a lot more than just the player and the picks you trade him for. Agents, for example. If such a trade happens, you can safely assume that the parties involved have a pretty good idea how safe the return on their investment really is.