Not to be needlessly confrontational, but unless you are referring to general training modalities (change in load/volume/RPE) the change of exercise every 2 weeks is definitely not a good thing for strength training. A big part of strength is skill acquisition both in terms of technique and in terms of neuromuscular efficiency, and that necessitates giving yourself enough time to learn a movement to a repeatable form (i.e. maybe not perfect, but consistent) and then enough time for your muscles to accommodate to higher and higher loads. If you don't then you are putting yourself in a perpetual state of learning a new movement, instead of getting good at it.
