If you say so. What you wrote was, "The problem with Crawford is unless he significantly improves his plate discipline, he's not a leadoff hitter..."
I don't see this as necessarily a problem, much less "the problem."
For that matter... the fact that Jimmy Rollins wasn't an ideal leadoff hitter was a "problem" with Jimmy Rollins. To the extent there was a problem, it was that Rollins' clubs didn't have (or their managers didn't see) a better leadoff option. This wasn't Jimmy's problem, but a problem in how others saw him (although I recognize that Rollins became attached to the leadoff slot - players do have egos).
The Phillies (and a lot of fans) went through the same thing with Scott Rolen. The "problem with Rolen" was that he wasn't really a cleanup hitter, wasn't a pure power hitter. And again, this wasn't Rolen's problem, but a problem of others' expectations, whether that was fans, or management that tried to will Rolen into being something he wasn't, because they didn't have the slugger they wanted.
If Justin Crawford can contribute, that is a good thing. If he's not a leadoff hitter...so what? If he's not Barry Bonds, so what?
Alec Bohm is not Mike Schmidt; nor is any other 3B the Phillies find likely to be. Nor is Bryson Stott, or anybody else, likely to be the next Chase Utley. That doesn't mean there are "problems" with these guys, although the jury's still out on both of them. But measure them against reasonable standards; faliure to be a "perfect" player, or a first-round hall-of-famer, is not a "problem."