I think Spalletti has to bear some of the blame for what is happening but to put it all at his feet is simplistic.
When you combine FFP with the edict of the Chinese Communist Party and the combined effects they have on Suning, we are simply fighting a losing battle. The squad can not be adequately reinforced, we can not play at the level required to make the top four in Serie A and then we start all over and repeat the cycle at the beginning of each season.
Truth be told, I feel sorry for Spalletti. He is trying to achieve the impossible with players that are not up to the task. The fact that our main reinforcements in the winter were a player that has been injured for nine months and a third string defender speaks volumes. What do you expect him to do? It is not like he has players sitting on the bench that can can impact a game. We have a gaping hole at left back. The centre of our defence is fucked when Miranda gets injured/suspended. The likes of Vecino, Valero and Gagliardini are hardly going to impact a game; Brozovic and Candreva are a joke and Perisic has been so disinterested that you would think he is just having a kick around in the park. And then there is Rafinha: the fact that we want to put some much faith in him shows: (1) our lack of alternatives; and (2) how desperate we are.
Today, we got a glimpse at what lies ahead. The likes of Icardi, Perisic and perhaps even Skriniar will leave in the summer, we will not be able to acquire the necessary players that help us make the leap in quality to qualify for the Champions League and due to FFP and the CCP we will to continue to struggle.
The way I see it, Inter are doomed to mediocrity for the foreseeable future and this will not change until our owners (or different owners) can spend to all ow us to make a qualitative leap.