Etling was the 11th QB taken in this year's draft.
Here is NFL.com's list of QBs drafted, year by year.
NFL.com Draft 2018 - NFL Draft History: Full Draft Year
Outside of whatever the hell is going on with their list from this year before Lauletta, you can see the likelihood of QBs taken later having success in the NFL. It's not so much about round drafted as it is about number of QBs taken overall. Just going to back Brady, here's the last spot where a truly quality QB (in some years, it's not even true quality) was drafted*:
7 (Brady)
2 (Brees: longtime journeyman A.J. Feeley went 9th)
5 (Garrard, though Josh McCown, taken 4th, has outlasted him, you judge the quality, as they are the 2 best from 2002)
2 (Leftwich, though, again, you judge the quality there. Palmer went #1)
3 (Roethlisberger, with Schaub going 5th and Luke McCown going 6th)
2 (Rodgers, with Orton going 7th, Cassel going 12th and Fitzpatrick 13th)
3 (Cutler was the best of the sad bunch)
5 (Drew Stanton at #5 was the best of this bunch)
2 (Joe Flacco, after Ryan went 1st. After them, Henne is the best of the bunch, and was taken 4th)
1 (Stafford is the only QB really worth mentioning, though some may try slipping Sanchez, taken 2nd, into the mix)
1 (Bradford)
11 (Tyrod Taylor, if you rate him as true quality. Newton at #1 is the only high end starter, with Dalton going 5th)
8 (Cousins, in a draft that had Luck/Pre-injury RGIII/Tannehill/Wilson/Foles ahead of him)
3 (Manuel was #1,Geno Smith was #2, and Glennon was #3 in an absolute dog of a draft)
5 (Jag, giving him the benefit of the doubt. Those who don't want to do that can go with Carr at #4)
2 (Mariota, with Semian at #7 having been a starter for the Broncos for a bit, for those who want to argue him)
8 (Prescott, and #2 Wentz for those who don't buy into Prescott)
3 (Watson, though this is obviously just based on small sample sizes)
*Any miscounts or omissions were unintended
So Etling's inspirational targets ("successful" predecessors taken at #11 or later) are Ryan Fitzpatrick, Matt Cassel and Tyrod Taylor.