I might be wrong, but I really think that in this case, the roster of Titans (more specifically) is detrimental to the book, because author and editors are always running after a Golden Age for those characters instead of trying something new. It doesn't help that those chracters aren't teen anymore but young adults, and yet in half the issues they seem to behave between themselves more like teenagers than the experienced heroes they are supposed to be (Nightwing went undercover into Spyral at Batman's request among many twists and turns in a long career, for crying out loud, you would think that a guy like that would be more apt at dealing with the situations at hand !).
Titans is sitting between two chairs, the NTT Golden Age and the Experienced-Heroes... and you can't have both styles in the same moment, either your heroes are still in training and dealing with a lot of changes in their life (among which puberty) or they are experienced and know how to deal with bad situations with a minimum amount of drama, except crisis of vast magnitude. Sadly, despite their results, the Titans haven't demonstrated the latter, and that's the problem, really.