The problems AMD face right now in the GFX market are many fold, and they never make it easy for themselves.
1) If they release at say 10% performance over 1080 in DX11 titles, they still have to be cheaper than the 1080 to get people to switch. Also that 10% can be easily matched or beaten by Nvidia if they choose to release a 1080ti, AMD cannot price higher than the 1080, as it will lose against a 1080ti at a similar price point. So AMD need to be cheaper but offer more performance, the ace they have up their sleeves is how their cards generally mature better, while this is an ace for some, others see it as lazy and that the performance should have been there from the start. Brand perception will potentially get a hammering yet again if they fail with this.
2) If they are slower than the 1080, but beat the 1070 they probably need to match the 1070 price, again as above, to get people to move across.
3) Future Tech, AMD love to build this into their products, while this gives them longer life spans, its rubbish for the early adopters, who watch a ton of hardware sit under utilised for aeons until the software catches up, if it ever does.
4) Advertising, while this has gotten better, they need to stop the petty pot shots like the "Poor Volta" thing, its clearly aimed at Nvidia, with the latin dig at them sleeping, even coloured green so as to not be any mistake about what they are poking fun at. If your going to be that blatant, you need to product to back it up, or you are going to lose even more of your ever dwindling user base.
5) Accept your place in the market and actually warm to it, rather than trying to force everyone to accept you as the "Premium Brand" instead of telling everyone thats who you are, and then pricing your underperforming products as such, embrace your seen as the performance to pound spent king and use it, once your brand strength and confidence expands, you can actually start charging premiums people will wear, if the product warrants it. Simply saying your premium but not actually being premium, will lose you even more market share.
I think AMD are at a crossroads right now, they can potentially be the biggest news of 2017 if they get their CPU and GPU Strategies right, i think Lisa Su has done a great job so far and that gives confidence that going forward with Zen and Vega we should hopefully not see some stupid decisions made, but i have to err on caution as this is is AMD and they always drop the ball one way or another.