Technology is available  GLT technology is readily available and could be quickly implemented. Hawkeye, used in tennis and cricket, would serve the GLT purpose very well. Though eventually dismissed, it was suggested that GPS technology could measure whether players are offside or not. Cameras are already set up for television with enough angles to make decisions; it would be simple to set up monitors pitch-side so that officials could watch replayed footage. Currently, viewers watching at home are able to make much more informed decisions than match officials.