I would take issue with the authors' statements about Syria being an internal issue as Syria has had its fingers in many pies throughout the middle east, fomented terror and the assassination of a PM of Hariri along with many politicians, bringing about the political ascendancy of Hezbolla. Syria's internal affairs are of interest to all middle eastern nations, whether or not Israel for example decides not to try and involve itself in that bubbling cauldron. But otherwise the article seems to be quite on target.
Turkey has managed to alienate all of its friends with the exception maybe of Azerbaijan, and that only because of Turkey's blockade of Armenia which grabbed Nagorno Karabach off the Azeris in a textbook operation of ethnic cleansing.
Erdogan lambasted Iran by stating that this nation “lacked honesty” and that this country was “losing their international prestige.”
"A former diplomat of Turkey, Sinan Ulgen, commented that “It is his (Erdogan's) posturing that has led to crises with our neighbors. If he hadn’t approached matters in a polarizing, black-and-white fashion, we wouldn’t have lost the ability to manage these relationships.”
“Instead of being the last person to intervene, very often he is the first to react. What he says then becomes policy, and limits Turkey’s room for maneuver; it corners us and policy becomes ossified.”