Iād say John Kiely makes the substitutions based on actually watching the game and having a notion what is happening in front of him. I canāt think of one lad that was lucky to be left or unlucky to be subbed off.
Speaking as someone who has been involved in a small way in that kind of thing, there is always the danger of becoming too reliant on the numbers.
Iām all for having as much data as possible, but the best and most valuable analysis is going to be done post-match so you have to focus on a few specific things to make informed decisions.
I donāt think this is the case with Kiely tbh, they know what theyāre at and have a good backroom team there but I have seen it where people become blinded with the numbers and are ignoring whatās actually happening.
Iām not saying subs are completely based on this, but it is very clearly a consideration.
an approach whereby you utilize the numbers and have an eye for a change is optimal. You canāt ignore the numbers and you canāt ignore what is happening in front of your eyes. A marriage of both, while possibly difficult to achieve is Nirvana.
Agree with you 100% it is easy to get bogged down in the numbers. This is where you need good visualization and presentation of the data, when you need to make decisions in real time, the numbers need to be presented so they can be digested and compared quickly.
Iām a tech-head so this shit gets me off.
Iām 99 percent sure the info limerick is getting from these gps monitors isnāt available to kiely immediately during the game. Elvis will confirm but Limerick subs have followed a very similar pattern to those of the ones he made for 2015 under 21s. Half forward sub early enough in the second half and impact sub into the full forward line in the last 15 minutes. Iām not sure which sub lads seem to think was made by a gpsā¦
Cant beat a few stats/graphs 
If they were taking people off on the basis of ground covered then Tom Morrissey would have been subbed. As it was he was playing so well they had to leave him on despite him being a (clean of illegal substances) white Mo Farah.
Glas has made this whole thing up. Kyle hayes covered more than 1.5k than anybody v tipp and was left on.
Morrissey the first day had 3 points got, Mul had 4. Both were going well and hooked.
Yeah but he said it isnāt about distance covered. itās about how you cover it. What effect itās having on you. How many sprints. How it relates to your averages.
Kyler is obviously able for it.
If Dowling for instance covered the same distance with same sprints theyād have the defribrillator on the sideline tuned to max.
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Tom M is a very different player to Hayes or Hegarty. He will nearly always be hooked before the two lads. They play different roles. Likewise gillane is the free taker so if your bringing Murphy in as impact player will you sub gillane or graeme?
Elvis will confirm but I donāt this info is at kielys hand during the game. Not instantly anyway.
Elvis has left the building.
it is. itās real time. itās fed back to the stands and communicated to the line. 100%
Point 3B refers to real time use of the data
It wasnāt Hickey against Tipp anyway!
Exactly. The main point of monitoring and tracking these things is keeping an eye on the different loads players are capable of. X player might be able to run all week whereas Y player picks up injuries after whatever distance. I donāt know if itās available in game but over a season theyāll have built up a very strong picture of what each player is capable of and when they hit their max. Obviously things will have to change in game and injuries will affect plans or numbers of subs available or going down to 14 will affect it as well. Sure if I said up Bumbles would say down.
Not sure about GPS but from talking to someone on the periphary of things the management have access to real time stats in game looking at lads overall performance and the guy marking them and that certainly informs some of the subs decisions
Another howler. Classic Bumbles.