I think it's fine for these guys to have interests and hobbies outside of football. For many of them, football may just be a job and their passion may lie somewhere else.
That being said, passions can't interfere with showing up for work and being ready to go when called upon. Does Waller making his music in the offseason mean he's distracted from his responsibilities to the Giants (should he not retire)? I certainly don't know. But at best, he's inviting scrutiny given he hasn't made a decision on retirement. That, in and of itself, it questionable decision-making to me.
Do whatever you want to do... but actually make the decision instead of floating around in a nebulous in-between.
That being said, passions can't interfere with showing up for work and being ready to go when called upon. Does Waller making his music in the offseason mean he's distracted from his responsibilities to the Giants (should he not retire)? I certainly don't know. But at best, he's inviting scrutiny given he hasn't made a decision on retirement. That, in and of itself, it questionable decision-making to me.
Do whatever you want to do... but actually make the decision instead of floating around in a nebulous in-between.