My team has an ideas person. But he is only responsible for the first iteration of an idea. I get an uber-complicated idea I break down into small pieces and it

My team has an ideas person. But he is only responsible for the first iteration of an idea. I get an uber-complicated idea I break down into small pieces and iterate on it until it's good– I'm executing. I set the target and keep the team focused on the current main goal. The idea person hates me for it, because he sees good ideas being ignored. Those good ideas won't deliver substantial value to users until the next milestone is completed, because it is blocking something more important.