We do need better than him, that's not in doubt. My point is that it's a lot harder for a good cross to come in when your starting position is much further back against a deep lying defence. You can either throw it in early (which Duncan tried all night and only got in one good cross), or take on your man. The problem with starting so deep is that when you take on your man the left centre back (or left back in a four) just comes out to narrow the angle, which blocks the lofted square ball into the box. You've either got another player to take on, a cut back if it's on, or batter the ball across. The latter almost always gets cut out for a corner, which happened to Morris several times last night. Morris stood a couple of balls up to the back post last night that nobody got near too.
The point is that the mythical good cross is extremely rare in modern football (probably only two or three in any given game from both wings combined). It's one thing that fans seem to latch onto as if it's really simple and should be happening every single time a player gets out wide. The other often mentioned one is corners beating the front man, yet you turn on any level, whether it's Modric, Messi or Mackie, it very regularly doesn't beat the front man (I saw it numerous times in the last world cup final for instance). Good crosses require the player crossing getting the ball nice and early, before the defence is set, or for a player to make that space on his own, drawing players out that would otherwise block the cross. Both rely on good movement from the front man to which Miovski is good at (Duk not so much). I watched part of the Hun game the other night, and they've probably got the two best crossers of the ball in our league in Tavernier and Barisic and they probably got two between them, both from deep and very difficult to execute (think Tavernier scored from a Barisic cross). The rest were dealt with by a defence that was deep enough to header clear.
Morris isn't good enough for numerous reasons, but accurate crossing is a difficult skill that is about a lot more than simply lumping it in (what Duncan was doing). Morris took responsibility last night (and to an extent against the Tims), it is very easy just to throw the ball in from deep and pretend that's you done your job. The improvements he needs to implement are his awareness, concentration and coming inside on his wrong foot (and shooting!). Crossing will generally be a numbers game for him, as it used to be for Hayes back in his day (he'd get nine shite ones before setting up a goal).