You're doing it the right way. The PSD is a blueprint for what the end result should look like. You implement it the best way possible for use in the browser (g

You're doing it the right way. The PSD is a blueprint for what the end result should look like. You implement it the best way possible for use in the browser (gradients, border-radius, etc.). For responsive, either the designer puts together comps for the various breakpoints or there is a discussion about how the main comp will change at various resolutions. The point about bootstap made in the article I only see as relevant where your goal is to have something that looks standard or use a theme for bootstrap, for anything unique or visually appealing it's often faster to play with certain concepts in photoshop before building it out. None of these things are really a problem if the designer is really a web designer. You can be backed into a corner real fast when you have print designers designing for the web.