If you are a small baker, it can be difficult to get a super good block that will explode your ROI. It is important to recognize that the more bakers there are, the higher the competition for a good block will be. Additionally, the more bakers there are, the higher the chance that a single individual’s bid will not be enough to win the block. Small bakers may need to invest more in order to win a good block and this could lead to a lower overall ROI. It is important to remember that even if a small baker does not win a good block, they can still make a profit from the smaller blocks they do win. Additionally, small bakers can work together to increase their chances of winning a good block. By pooling their resources, small bakers can increase their chances of winning a good block and therefore increase their ROI.