I agree with you that Saquon Barkley was an amazing prospect. He was considered by many to be the #1 overall prospect in the draft. He already is a good addition to the Giants and would have been a good addition to any team lucky enough to have him. He is not just a RB but a weapon.
I disagree that taking him and waiting was the right move when Josh Rosen is available but that's a value and judgement call. I don't think there is a right move, but to me the better long term move was grabbing Rosen. From what I read, saw, and studied he was the best QB in the draft or 1b and a top 5-8 prospect. Manning was and is toast. QB is the most important position. Rosen was the most scheme diverse and pro-ready QB. QBs, even theoretically pro-ready ones like Rosen, take time to develop so if you want to start winning sooner draft Rosen now and let him develop. If you happen to tank again in 2018 you can draft next years top weapon in the number 1-4 spot. But there are many ways to do this and, again, I think for me it is more of a judgement/value-call/preference.
I think you are understating not how bad Fisher was but how freaking good Sean McVay is. He's innovative, perhaps the most innovative coach offensively. Night and day don't even do Fisher vs McVay justice. Hitting on McVay is difficult and the Giants usually steady leadership has had a few rough years in a row with coach - front office turmoil. Their McHire didn't work out well (McAdoo).
As for Dallas and Dak:
he's not a starting quarterback. I need to sleep so I will be lazy with my own mechanics and leave it at that.
I think you and I just have very different views on Rosen, so it didn't surprise me at all that he went 10th, and last out of the top four QB's, but I'm fine agreeing to disagree there. IMO, the only QB that is going to turn out to be worth a top 10 pick is Mayfield, and I said it at the time. The Giants weren't getting him, so I think Barkley was the right move at the right time, whereas normally, I would eviscerate a team for taking a RB that high.
I also think you're understating how what kind of prospect Barkley was, when you say they could tank again and take next year's version of him in the top 5. Guys like Barkley don't show up every year. There was a famous tweet after the combine that said Barkley was stronger than Joe Thomas (he benched 29 reps to Thomas' 28), quicker than DeSean Jackson (beat Jackson in the 10 yard split 1.54 to 1.55), faster than Devin Hester (4.40 to 4.43 in the 40) and jumps higher than Julio Jones (38.5 to 41.0 in the vertical). He's another level, generational type of talent. The numbers he's putting up behind that offensive line and with that passing game are absurd.
Don't get me wrong, I like McVay a lot, but I'm not quite ready to anoint him just yet. The name people should be talking about with the Rams, and aren't, is Les Snead, their GM. Putting aside the fact that it was Snead who was the first guy to basically go to bat for McVay and convince ownership to take a chance on a 30 year old head coach, Snead has put together, IMO, the most talented roster in the NFL, on both sides of the ball.
He has seemingly made it his life's mission to ruin the Washington Redskins. This is a guy that was hired in 2012, and a month later, he turned around and traded the 2nd overall pick to the Redskins when it became clear Luck was going #1, and he didn't want RGIII. He got back their 1st and 2nd in 2012, and their first round picks in 2013 and 2014, basically destroying the Redskins for the foreseeable future. On top of that, in case people forget, he poached McVay from the Redskins. McVay was the Redskins offensive coordinator until 2016 when Snead hired him to come over to the Rams. LOL. He's made one great move and draft pick after another ever since. John Johnson, Cooper Kupp (go look at that guy's college stats and his size and tell me how many GM's are kicking themselves now for not seeing him), Robert Woods (who he resigned over McVay's guy, Pierre Garcon), Aaron Donald, Todd Gurley and the list just goes on and on to signings like Marcus Peters, Suh, Cooks, etc. McVay appears to be a great coach, but Les Snead has put him into a position where if he doesn't succeed, it would be an epic failure.
As for Dak, I guess we'll find out. I'm not saying the guy is a top 10 quarterback, but I think it's a bit much to say he's not a starter. There aren't 30+ quarterbacks in the NFL better than him. Two years ago, before the entire offense was gutted, he was a fourth round rookie thrown into the fire out of training camp, and went 13-3 with a 104.9 passer rating. He was sacked 25 times in 16 games that year, he's already been sacked 16 times in 5 games this year. He's got nowhere to throw the ball to. I think there are maybe 4-5 QB's in the NFL that could make that offense look average, if not slightly below average, and Dak isn't one of those. He protects the ball and he can move around in and out of the pocket well enough that he already has a leg up on probably 10 other starters right now. He just has nobody around him and he's getting killed on top of it. I'm not ready to give up on him, and I don't think Dallas should either, but if people want to blame him, be my guest, I'm nothing close to a Dallas fan. Don't even get me started on Jason Garrett though.