It would still require a large initial outlay of cash in order to equip all stadiums with the technology and train officials in using it. Also, the technology would need to be constantly re-designed and re-developed so that it could keep up with technological advances; this would be extremely expensive and endless, but necessary to keep technology up-to-date, relevant and fit for purpose. Some people suggest that the money would be better spent improving existing official options, such as improving refereeing academies.