In all fairness, most of his other whiffs didn't involve premium draft choices.
Since he's been with the team, here are some of the d-linemen drafted
2013: No D-linemen
2014: Demarcus Lawrence (traded up in 2nd round, cost us a 3rd) and a few 7th round scrubs in Ben Gardner and Ken Bishop
2015: Randy Gregory in the second and Ryan Russell in the 5th. Gregory obvioulsy has the talent, just a matter of staying on the field. Russell for a 5th round pick, wasn't that bad of a miss.
2016: Charles Tapper in the 4th. Would've liked more from Tapper here, but he was an okay risk for a 4th round pick.
2017: Taco Charlton in the first and Joey Ivie and Jordan Carrell in the 7th. Taco was a bad pick...really bad. Several quality players at multiple need positions taken right after him. Njoku, Watt, Baker, all would have filled immediate needs. Ivie is the one everyone gives Marenelli **** for, and I get it, his reaction to this guy who lasted all of 5 minutes is funny, but it's really not that big of a deal.
2018: No D-linemen
2019: Tyrsten Hill in the second, Joe Jackson in the 5th and Jalen Jelks in the 7th. Hill isn't off to a good start and imo, we should have drafted Juan Thornhill, but it's still early for Hill and Jackson *may* develop into something
He undoubtedly whiffed on Taco and may have missed on Hill, but most of the misses prior to this were low risk resources