It's hard to judge Mark Warburton's opening Premiership matches.

While his team have regularly dominated possession and created more chances than most - with 90 shots only Celtic and Hearts have more - the results haven't come. Two victories in seven matches, three draws, two defeats and some less than stellar performances from summer arrivals have increased the scrutiny.

Rangers have, however, been dominant in possession in almost every match they've played this season. With the exception of the Celtic match, the lowest share of the ball they've had in any one match was 56% against Kilmarnock. Against Aberdeen they had 59% of the ball, against Ross County it was 58%, and against Hamilton it was 63%. Those matches yielded just two points.

For possession football to be effective, a team must be able to keep an opponent at arm's length while wearing them down and frustrating them, forcing them into mistakes. In attack Rangers have looked effective, especially with Kenny Miller in the side. They have width, pace, energy and creativity. However, they've been defensively poor all term, with no convincing centre-back pairing, and James Tavernier's defensive susceptibilities exposed too frequently.

In seven games, Rangers have conceded the first goal five times. Last term it was ten matches before any side took the lead against Warburton's side, and happened just five times from the start of the season until the point the Championship title was secured.

A couple of weeks into the season and it was easy to see why Richie Foran's side were being written off as relegation battlers. While it's become an annual event for Inverness to have to replace key players from the season previous, and to try to find a focal point in attack, this time their defence also seemed suspect.

We are obviously too early in the season to draw any serious conclusions, but Inverness have been ruthless in front of goal so far this term, and that's a key factor if you aren't making a huge number of chances - only three sides have had less shots.

However, when they're being presented with chances, Inverness are taking them. Alex Fisher has hit the target with seven of his nine shots so far this season, and Iain Vigurs has kept his shooting accuracy over 50%, despite almost all of his shots this season being from outside the box.

Indeed, Caledonian Thistle are converting one in every four chances they get so far this term. The law of averages would suggest this is unsustainably high, but it may just be that Caley are taking their chances.

Who is the most fouled player in the Scottish Premiership? Scott Sinclair? Andy Halliday? Sam Nicholson?

Aberdeen's Graeme Shinnie has been on the receiving end of more fouls than any other player in the Scottish Premiership so far this season, with 19 fouls committed against him. Partly, that's because he's been almost permanently stationed as a holding midfield player in the absence of Ryan Jack, and players in central positions tend to see more of the ball, as the other names on the list would tend to suggest.

One other interesting point from that table; why have so many teams got it in for St Johnstone?