Lets Do Blogging

• Compositing (for blue/green or live shots u r going to use keying ,paint ,roto or tracking tools only so master it )
  
• Wire Removal- Retouching (it may work in different combinations provided little logic)
  Few examples as well as tips for beginners If it is a still shot try to cut and paste the nearest related objects to the maximum extent to save time If there is some camera movement try to cut a portion of the single nearest frame and try to track according to the wire ….this will also save ur time Or do manually (so master the paint tool again)
  
• Rotosplining - The main tool will applicable in any area so must to b good in this tool..
  Opticals – only for people with knowledge in cutlist not need for all compositors but try to learn this also..
  
• Multiplication - again u r going to use keying, roto ,paint and track tool only here..
  
• Morphing ,Warping – Morph tool only which will have tools inside like roto,deformations etc..
  Tracking and Stabilizing – going to use track ,keying roto and paint tools only
  Titling – Filters
  
• Effects like particles, filter effects etc jobs only ( if anything else is there pls let me know also)

So in overall u r going to repeat the same tools in multiple areas …so if u have indepth knowledge about the tools to do the above mentioned ( only few unlilke 3d) that itself will be more enough to become a good compositor provided with good quality of outputs from u…This will come by practise only ….