Oh lord, another "I'm so fair, I'm so open-minded" Gaytor defender.
No, transitioning 4 out of 5 new OLs is NOT the same as transitioning 3 out of 4 new DLs. And NO, out DL is NOT "just as unquantified" That's a load of crap.
First of all, OL players tend to stay on the field, as a unit, much more than DL players. Once you put your 5 best OLs on the field, an OC does not rotate in alternate OLs the way that a DC rotates DLs. So when you are replacing 80% of a starting OL, as opposed to 75% of a starting DL, you will TEND to have DLs who have more reps in the prior year.
Second, OL play tends to rely on coordination of efforts, whereas DL play (while somewhat planned) can be much more impacted by individual effort and dominant individual play. A DE who beats an OT to make a sack can often do so on his own, without relying on a playcall or coordination with the other 3 DLs.
More importantly, there are actual statistics that show how "quantified" our DLs are. If you add up the statistical production of our top 3 graduating DLs from 2018, and compare it to our top 3 returning DLs for 2019, you will see that Miami's defensive line (statistically) should not be a huge drop-off:
Graduating top 3 (Willis, Joe Jackson, Odenigbo) - 64 solo tackles, 67 assists, 38 tackles-for-loss, 12.5 sacks
Returning top 3 (Garvin, Patchan, Bethel) - 41 solo tackles, 70 assists, 24.5 tackles-for-loss, 7 sacks
Comparatively, there is a much bigger drop-off when you look at the UF OL. For one thing, the 4 graduating OLs were dominant in their on-field time, 3 started 13 games and the other started 12 games, with all 4 playing the vast majority of the non-garbage-time snaps. Of the top 6 returning UF OLs, 3 of them qualified to redshirt last year, with Delance playing in only 4 games, Bleich playing in only 4 games, and Gouriage playing in only 2 games. Heggie only played in 9 games (Buchanan played in 12 games and Forsythe played in 13 games). So the sum total impact of those 6 returning UF OLs is NOT a lot of snaps, that's for sure. Compared to the top 3 returning UM DLs, who played a much greater percentage of the time when compared to the UF OLs, it is very easy to conclude that the UM DLs are much more ready to step into starting roles when compared to the UF OLs.
Start doing some analysis, instead of making broad bland statements that generalize about "new starters". That's just a meaningless term that doesn't take into account whether "new starters" actually played meaningful time in the prior year.
Oh, and I haven't even factored in our transfers on the DL. Which Gaytor fans are fond of dismissing, when in reality, the Gaytors could have used a massive assist from OL transfers.