I will support Ronald through 4 transfer windows. I think he's got an idea of what he wants to do, which is press but sit deep and do it. It won't be a high press like Spurs, but it will be defensively sound and have the ability to hit on the counterattack. Unfortunately he doesn't have the players to do it now.
And pressing is much more than just saying, "I want to press." Every player has to coordinate and press at the same time. It took Klopp 2/3rds of a season to get his game straight with the shite, so we shouldn't expect things to turn immediately. He'll get the players he needs to execute the vision he has over the next window or two. Gueye and Bolaise will work. As will Lukaku. Essentially everyone else will be on notice.