Ok viable explanations for coulsen being alive?
1. The series starts prior to events in avengers movie.
2. The coulsen that died in the film was a life model decoy:--> secret invasion spoiler--->
(same way that Maria hill escaped the skrull in secret invasion)
3. Or vice versa
4. One of the coulsens is a skrull
If you can fill the unforgiving minute,
With sixty seconds worth of distance run,
Yours is the Earth and everything that's in it,
And - which is more - you'll be a man my son.