Tanking in football has never made a lot of sense to me.
In basketball with 9 man rotations and 15 man rosters sure. You can turnover the roster, change the culture, and still build on what you have.
With 40-45 guys who all play and a 53 man roster you are going to retain a lot of that losing ethic. I do believe in the notion of a team's culture.
I think of the great consistent teams in the NFL like NE, GB, and PItt and what I don't see is tanking. OTOH, I see perennial doormats who pick in the top10 year after year without cessation like Cleveland and Chicago.
I am 100% behind the Giant's tanking.