We really should make signing Tucker a priority. The kid is clutch and will likely be even more valuable if they change the extra point.
For the guard situation, I would sign Osemele to the longterm deal and then hit Yanda with the Franchise tag. He is a top 5 talent and deserves a top-5 salary, so we would have his services for another year and then see if we couldn't get a savings longer term based on him being a year older.
Lastly, the list of top-ten quarterbacks can't cut both ways, you either have a list of the top ten players regardless of their supporting cast, or you have a list of the top ten offenses. Peyton Manning might fit well into any offense as a top ten quarterback, but when you look at his supporting cast, it is not top ten. Just saying.