Perhaps 'one trick pony' was somewhat overstating the matter, however I do stand by the point that he's currently showing a lack adaptability and versatility.
Like I mentioned earlier, I fully understand that managers have a certain style of play that they prefer but there must be a degree of flexibility in their approach.
In the mainstay, we're playing a very similar formation week in, week out, which isn't working; when we concede, he then regularly goes to a 4-4-2 approach.
So because his desired 4-3-3 approach isn't yet ready, it excuses our results? Why does he not adapt from our current approach when it clearly isn't working?
I'm not saying there isn't mitigating circumstances such as players under performing, not having his preferred players and some of the dross left by others et al.
However, and it's a big however, at some point we've got to objectively look at what Silva is doing with what is available to him and make a fair assessment.
My point is that a good manager should be able to adapt (at least to some extent) to what he has available and make the best of it. I question whether Silva is...
For a number of reasons, I'm still an advocate of giving Silva time although he must start making some changes because his rigidity is looking somewhat worrying.