Ronald Curry won’t return to Saints staff (Buffalo Bills hiring Ronald Curry as QB coach)

It depends. The Texans did accomplish it quickly and can be a case study to compare how close we are to doing the same. I checked their entire staff for Shanahan connections, see below. Players: We know they had the elite intelligent QB required. But what about their O-line, did they already have a group of athletic olineman that had experience in the system? I checked their roster and found the below. Im not sure about their WR if they are elite blockers or have Shanahan/McVay exp or their Tes and RB. But judging by the list below, it seems apparent that we need multiple coaches w/ Shanhan system exp. Im not sure if we have any current players from that tree. So to answer the OPs question, we seem pretty far away. Feel free to add players to the list below

TEXANS coaches familiar w/ the Shanahan system:
HC Demeco Ryans
OC Bobby Slowik
QB coach Jerrod Johnson
SR Offense Asst Shane Day

OLINE w/ Shanahan McVay Exp:
George Fant (OG) Jets (Salah)
Michael Deiter (C/G) Miami (Mike Mac)
Dieter Eiselen (G) Chicago (Matt Eberflus/McVay)

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