Experiment Computing Models
Experiments do not improve computing model performance sufficiently.
Lack of investment of effort to reduce reconstruction time, decrease storage needs, etc. would mean that resource requirements are unneccesarily high and unaffordable.
Experiment working groups on all aspects of computing and storage: nanaAOD, reduce reconstruction time, fast simulation, etc. Must include work on data models.
These groups are in place and working, with significant reductions in the original estimates of resources needed for HL-LHC. Sharing of findings and strategies between experiments is encouraged. Some optimism that these efforts are bearing fruit.