If you want to blame someone, you should blame the FO for failing to provide even a modest cast for Flacco. As much as people like to cry regression, there's a pretty clear downward arch in Flacco's numbers as the FO has missed more and more often at WR and TE.
or just stopped drafting them altogether...
since 2012 we have drafted only 4 skill position players in the first 2 days of a draft - of the 20 picks we've made as an organisation since we started trying to negotiate flacco's contract we have only spent 4 on giving him weapons: perriman who was a 1st round pick but has so far shown nothing, maxx who was a 2nd round pick who has been a good run blocker but has added no value to the passing game, crockett gillmore who was an ok run blocker but didnt develop into the pass catcher we hoped he could and bernard pierce who had a good rookie season as a change of pace back and then proceeded to never show anything again...
so not only is it the misses that are dragging the team down, tbh its the lack of attempts to find playmakers at skill positions that is pulling the team down - those picks would have been fine if we could find a couple more picks to spend on playmakers and improve the odds of finding a guy or 2 who would stick around and be helpful to joe for at least their whole rookie contract - the odds are stacked against any of these guys getting 2nd contracts (in fact the best bet is gillmore who is converting to tackle anyway)
and its not like we've spent capital on protecting him either... only 2 day 2 or higher picks have been spent on protecting him too... both have been great pickups but they were picked so far apart that they never even played together: stanley who looks like our franchise left tackle of the future and Kelechi Osemele who played so well he priced himself out of baltimore and is probably the best left guard in the league
but the overall issue is still a problem - less than a third of the day 2 (or higher) picks have been spent on offence despite the fact that we are paying a franchise qb and it would seem obvious that we would want to put that franchise qb in a position to win and maximise his talent...
this team just needs to take more shots on offensive players in the draft (im hoping and expecting this draft to redress the ratio a little at least) and obviously im ignoring contributions from day 3 players which you could argue is a bit disingenuous - but my point isnt that we havent drafted good players its that we havent taken enough shots on offensive players (and most dramatically skill position players) to expect flacco to ever have the tools to succeed around him - especially given the fact that we are never a top tier open cap space team who can go after premier ascending skill position talents in free agency