Any management that doesn't recognise the impact of a tough day on the future performance of it's employees has little understanding that it employs people, not robots. Physiology and psychology are key to 21st Century management.
If this was the NHL where they're paid magabucks maybe your "pro-hockey" argument might have some logic. This is the EIHL. Some reality needs to creep in here.
How many trainers, dietitians, physios does the club employ? Where are the high-tech gym, isobaric chambers and swimming pools located? The private jet to away venues comes in useful
Dream on!
I fully accept that there is going to be a knock-on effect, but these players are professionals and should be conditioned to the point where 'a tough game' doesn't make them collapse in the following match. They have from April/May to August to train (albeit around Summer work, perhaps), but for someone who intends to make hockey their living, that should be plenty of time to get in excellent shape. If anything, they should be fitter now than at the end of the season, when they're battered and bruised from 50 odd games.
If you or I have a tough, long day in the office then we might feel a little jaded in work the next day. Perhaps our productivity drops a little, or we're grumpy with colleagues, but we wouldn't get away with failing to do our job to an adequate standard. If there were exceptional circumstances (such as having to pull an all-nighter in work), the employer should cut the employee a little more slack, but my point is that a tough game against Nottingham is far from exceptional...it's what they should expect, and prepare for, every week.
I also accept that they aren't paid NHL mega-bucks, but this is their livelihood - it's not as if they have to work a 40 hour week and then train on top of that and play 2 matches every weekend. Some of these players earn a decent living, with accommodation, education, car, gym etc all fully covered. The net result of that is a very respectable living - possibly more than a lot of the fans, I'd imagine.
As to the number of trainers/physios etc, I honestly don't know the answer to that, but I'd be very surprised if they don't have access to those people as and when needed. I think at least a couple of the players are trained as fitness instructors/personal trainers, so I don't really buy that as an excuse either. Besides, we're not asking these people to complete the Marathon de Sables, or the Tour de France - it's 2 games in 2 days.
Every team will lose games, and will be outplayed by other teams at times, but I don't think there's an excuse for not being physically able to play a second game in a row to the requisite standard.