Austin Siereveld is a powerful OT/OG flex prospect whose grade is built on run-blocking displacement, hand strength, anchor, and four-position versatility. He has enough tackle experience to provide swing value, but his cleanest NFL pathway is likely inside at guard, where his play strength and finishing temperament translate best in gap, duo, and power-heavy schemes. The concern is whether his arm length, recovery range, and pass-set consistency are strong enough to hold up full time on the edge. His starting pathway is there, but the grade depends on whether teams view him as a true tackle or a high-end guard conversion.