Not quoting BBZ for space reasons...
About the argument that Messi and Griezmann are both short, how is that different to the situation we have now? How many goals did Suarez score with his head after corners or crosses?
Second, Griezmann and Dembele would of course draw defenders from Messi. Why would any opponent leave one of the best attackers in the world and one of the fastest and most skillful wingers unmarked?
Cfs being short is one of the reasons why Real will win 4 CLs in the last 5 years, even though we actually have Messi in our team.
Everyone (in a CL) learned how to neutralize teams like Barca: crowd the middle and the end. Barca don't want to cross or do anything through flanks (except pass the ball back to the edge of the box to Messi and Iniesta) and that's it.
So, a part about short Cfs was: forget about a winning CL with Messi-Griezz duo, more or less.
About how Suarez and Messi are also shorter, well again, that is one of the reasons why are we knocked out almost easily in the last 6 out of 7 CLs.
Those 2 are good enough for La liga, mostly because we have Messi.
About Griezz and Dembele drawing players away.
Well, of course that someone will mark them.
BUT, when you have Luis in the box, 1-2 players are always around him, IN THE BOX.
That means that if an opponent has 4 defenders at the edge of the box (in the middle), 1-2 will mark Luis, and others 2 will mark Messi.
While, if you have 2 wide wingers, then more or less 4 central Cbs will mark Messi.
Even now, the opponents are NOT marking our flanks too much.
If Dembele gets the ball and runs, in majority of cases, he will need to pass the ball BACK on the edge of a box to Messi.
The same with Alba and other wingers.
In short: the opponents will always overcrowd the middle around the box since Messi is playing there and all balls from all positions are aimed at Messi who waits at the edge of a box.
It doesn't mean that NOBODY will mark our wingers, but the opponents are not "strict" on marking our wings as they are strict on marking and overcrowding (is this the right word?) the middle.
So, don't take literally my words that they are not marking wings etc...
But you get the point.
And now, since the middle is overcrowded, Luis was slightly drawing away at least SOME defenders from Messi.
While if you put Messi ALONE in the middle in 2018 and 2019, when Messi is dropping deep all the time, there is a high chance that Messi will be too far from the goal too often, with 5-6 defenders around the box infront of him, and Griezz and Dembele will be too far on wings, plus Dembele can't score.
Imo, our lineup will be the same as now, with some variations like:
Suarez-Messi
Griezz at a flank.
Or Griezz-Messi sometimes (when Luis is resting)
Or Suarez-Griezz (when Messi is resting).
Imo, an option with Griezmann-Messi SS-Dembele exists only at Barcaforum, and is miles away from a reality.
You guys have "decided" that Suarez is done and now you are creating some new lineups without him.
And yet, for example, Dembele didn't even play in the last 3 big matches:
Roma 0:3
Sevilla 5:0
Real 2:2
Suarez played 90, 90, 90 minutes in all 3 matches, scoring 3 goals.
So, imo, please stop with these ideas.
Luis Suarez will be a starter in 90% of matches in the next season.
You need to accept that.
And now, if you have some ideas how to fit both Suarez, Messi, Coutinho and then Griezmann and Dembele, we can discuss about those new ideas.
Imo, it makes zero sense to lose time on debates how Luis will be or should be benched.
That won't happen at least till a summer of 2019.
He just posted on his instagram a picture of him reading a french newspaper talking about Tuchel's plans. He has a great relationship with Tuchel.
I don't see that pic on his official Instagram btw.