taliesin… can you please crawl back into whatever welsh hole it is you came from and leave the rest of us who have been trying to have unbiased but open opinionated discussions alone? Honestly everything you have said is contradictory and more importantly entirely welsh biased. Quite a few welsh people i know questioned AWJ starting 2nd and 3rd test and most would have said launchberry or the gray brothers were ahead of him on current form after 6n… and people are allowed to say that someone clearly knows more than them but disagree with their opinion… it’s an opinion … like yours which is always utter sh*t from what i have read on most of the forums. so please grow up stop baiting people into arguments and accept that it was a good tour but there were as always with a lions tour contentious decisions that not all will agree with AND ARE ENTITLED TO THEIR OPINION ON!
Substitutes (generally referred to as "the bench") are allowed in the sport, and are typically used when a player gets tired or injured , although they can also be used tactically. Each team is currently allowed four substitutes, and in Australia and New Zealand, these players occupy shirt numbers 14 to 22.  There are no limitations on which players must occupy these interchangeable slots. Generally, twelve interchanges are allowed in any game from each team, although in the National Rugby League, this was reduced to ten prior to the 2008 season  and further reduced to eight prior to the 2016 season. If a team has to interchange a player due to the blood bin rule or due to injury, and this was the result of misconduct from the opposing team, the compromised team does not have to use one of its allocated interchanges to take the player in question off the field.
To provide effective cover behind the defensive line, good full-backs are careful not to get caught out of position and must anticipate the opposition's play. Their position behind the backline allows them to see any holes in the defensive line and they either communicate with the backs to close the gaps up or cover the gaps themselves.  The full-back has the most potential for attacking the opposition, especially from a misdirected kick.  If a kick is fielded and there is enough space and support, the full-back may decide to counter-attack by running the ball back towards the opposition.  Due to their kicking skills, in some teams the full-back is also responsible for taking the goal kicks.