You didn't answer my question.
I asked him to name TEAMS who had success with tweeners.
Not to rattle off a list of sub 6'5 SGs with halfway decent stats.
Mayo is considered to be a bust, and was eventually benched in favor of Conley. As soon as they did that, the Grizzlies "got good". Read Grizzlies forums, you'd know their fans have been down on Mayo for years. One of the popular Grizzlies threads are "what can we get for Mayo?".
Wade's not a tweener. Being a quarter of an inch under 6'5" doesn't = tweener.
Arenas is a poor example because any team he's on always struggles. What have the Wizards ever done besides sink into oblivion because of him? The best he's done is get to barely .500 during a time the eastern conference was incredibly weak. He then struggled with injury for years and eventually his very name became more toxic than Allen Iverson's.
Barbosa. Bench guy. Barbosa is a real stretch to give credit to team success. He's about the same as Gary Neal at this point (and last several years). Though I'll admit, over 5-6 years ago, he was useful with the Suns. But that's 5+ years ago, not now.
Dooling. Wut? He's mediocre. Never averaged 10 points or only cracked more than 2.5 assists twice in his 12 year career.
Eric Gordon: Again, I asked for TEAMS that had success with "tweeners". The Clippers sucked with Eric Gordon, and "got good" once they traded him. FYI, the team he got traded to won the draft lottery this year. Not a good example.
Ben Gordon: A no defense SG who's earned only 68 wins in the last three seasons combined. The Bulls were just .500 with Gordon, (and well under it the year before), and suddenly "got good" once he was dumped. Bulls lead the NBA in wins the last 2 years. Again, another not very good example.
I asked for teams that had sucess with tweeners, not to "list under 6'5" SGs who had decent stats".
So of everyone you listed, none of them fit what I was asking for. . .Wade is the only player on your list who even has success now, yet he's only had success when his team signed a ton of excellent free agents to assist him (Shaq, Payton, Walker, etc the first time, Bosh and LeBron this time). Though besides, I don't even consider Wade a "tweener" since he's 6'4 3/4th". A quarter inch under 6'5" doesn't make him a "tweener". The average height for starting SGs isn't even above 6'5" right now. So I don't see how 6'4 3/4ths" = tweener.
Long story short, tweeners tend to not be successful. At the very least, there aren't "a lot of teams having success with them", because technically 0 do right now. The best place for a tweener is getting 15 mins off the bench for scoring punch. And even those guys tend to not be on successful teams, but rather play for losing teams with an overpaid salary to sell tickets in dead end cities as an "exciting scorer".