I hate to say it but the thing I always dislike about the Islanders going the route of one year "show-me" deals is that in all likelihood it is a no-win situation. Either the player, in this case Lehner, is average to below-average and you dont want to re-sign them (or in the Isles case, they probably would re-sign him). Or, he has an amazing season and then is not interested in staying with the Islanders. I mean, lets be honest for a second, if somehow Robin Lehner has a ridiculous season this year, lets say he finishes top 10 in the league in all key stats and basically carries an average Isles team into the playoffs. Do you really think that if there are other teams lining up for him, a 28 year old goalie after a season like that, he chooses to stay here? This is why 1 year deals for players makes no sense for the Islanders and I look at it being a no-win.
It is somewhat similar to the situation with Lee and Eberle. I understand the thought of wanting to see how they do this year, but in the real world when you are running the Islanders of all teams, if guys like these two are not re-signed now and they go on to have great seasons, they will be gone.
I know it sucks, but the Islanders are not a desirable team and they cannot use show-me deals the way some other teams can.