Considering it’s impossible to prove a negative, I’ll just go ahead and post the evidence that Clinton has concrete plans: https://www.hillaryclinton.com/issues. If you want to argue the other side (that another candidate does), you have to provide the evidence.
HRC is a policy wonk. I, personally, want someone in office who’s committed and understands the issues they have to take on. It’s a bonus that she embodies most of the political ideals that I personally hold, but I would vote for her regardless because she’s the only serious candidate.