It's your opinion, but I don't see how this works.
I don't necessarily believe that Ms. Marvel needs a solo film, though I would very much like to see the character, especially in Avengers 2. Establish Carol Danvers as a captain for the USAF, Space Command during an early season episode of SHIELD. Possibly just assisting the SHIELD operatives investigating a case or providing an expert opinion. Then give her another appearance later in the season further developing the character and a supporting role in GOTG. You then followup with her post-accident on the 2014-2015 season of SHIELD for an episode.