I remember Goodman writing about Florida when he was on the beat there and saying Chris Leak should be benched and allow Tebow to run that Florida offense. He was convinced Tebow was a better passing threat than Leak which we all knew, then and now, wasn't true. When I factor in his stance on UAB and the Bama conspiracy theories to keep them down...well, don't care a lot for his perspective(s.) He's a UAB alum so I can set that aside, a bit.
All that said ... I'll take his opinion and offer mine.
First of all, I see this comparison between what Trey Burton has done and what Jalen offers as bad analogies. After all, Trey was recruited for a different scheme and a coaching change pushed him into playing other positions: WR, TE, and FB. Add to that, as already alluded to in this thread, they are built differently.
When it comes to Jalen I fully expect him to compete for the QB position come spring. We saw, in the NC game, a couple of reasons Tua wasn't ready for that position. Now, some of the mistakes we saw with Tua we saw with Jalen in his freshman year--like ball security. We also saw Jalen improve in that area last season so to dismiss his ability to grow more into the position seems a little premature.
Jalen isn't a bad quarterback. In fact, he's a great quarterback. You don't win a SECC, or get your team into the NC game in back-to-back years without being good at what you are doing.
He's labeled bad because a lot of people are judging him on one aspect of the game, one aspect of playing QB, and it's certainly an important one--his talent/ability as a downfield passer who can also see routes opening before they do. IF we choose to evaluate Jalen on that alone? Yes, I'd say that's not good. But, he's not the type of player that is made for that skill set (at least he hasn't been.)
Jalen has been excellent at just about every other aspect of playing the QB position. I know I'm beating a dead horse here but his talents at the other aspects of the QB position is why Bama won the SECC last year, it's why he was SECPOY, it's why we've seen him earn the accolades that he has.
What I'm seeing is judgments based on his ability to accurately throw the ball downfield. That's simplistic, it's also not a fair shake. The position is not made up one that single aspect; downfield passing. It's not that cut and dried. If he continued at the position he'd do well and Bama would continue to win as they have been the last two seasons.
Who is the better quarterback for what Saban wants out of the position? In the NC game it was Jalen and his control of the offense...until Bama had to open it up. In the future I can see Tua being "the guy." But, the suggestion Jalen needs to change positions and do so now? Like I said, premature.