Sure, you can get both. It doesn't matter though and here's the very simple reason it doesn't. The guys they got on signing day never mattered, at least not to this point. In OU's case with their two Heisman transfers, neither ever played a down for them. You wouldn't even recognize their name in the case of Mayfield and Murray. Rattler may change that for OU as they brought Hurts in, but he was a big name while neither of the other two had big names coming in with them.
You can certainly skip a QB, my list proves it.
The points was even with bringing in transfers Oklahoma still signed HS QB's in the same class, they literally didn't & haven't skipped taking a QB at all.
The same year they got Baker Mayfield, they still signed Chris Robinson.
The same year they got Kyler Murray, they still signed Tanner Modercai.
The same year they got Jalen Hurts, they still signed Spencer Rattler.
UGA just took 2 transfers this year & they still signed Carson Beck in the 2020 class & will be signing Brock Vandagriff for the 21 class.
When LSU took Joe Burrow, they still signed Myles Brennan & Lowell Narcisse, then signed Peter Parrish the following year.
When Oh St got Justin Fields, they still took Gunnar Hoak the same year & signed CJ Stroud for 2020.
When Washington took Jacob Easton, they still signed Colson Yankoff & Jacob Sirmon the same year.
Regardless of what transfer QB's big time schools get they still sign HS QB's in the same class because it's just smart math. Just because you can skip a year doesn't mean you should.
Even after Clemson won a national championship with a TF QB they signed a QB the following year, they could've easily skipped that year with knowing they had Lawerence for the next 2-3 years, but they've still signed a QB in every class since getting Lawrence.
Miami's QB situation outside of King is TVD's potential, Matocha's development & hoping Kosi who has been a bust thus far finally has an offense that he can maybe be decent enough to possibly play as a Senior.
Not taking a QB this year wouldn't be smart.